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Finding the Fourth Proportional to 578,049.90, 867,074.85 and 157,325.10

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Solution

The fourth proportional to 578,049.90, 867,074.85 and 157,325.10 is: 235,987.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,049.90 : 867,074.85 = 157,325.10 : x
  2. Step 2: Convert to fraction form
    578,049.90/867,074.85 = 157,325.10/x
  3. Step 3: Cross multiply
    578,049.90x = 867,074.85 × 157,325.10
  4. Step 4: Simplify right side
    578,049.90x = 136,412,637,483.74
  5. Step 5: Solve for x
    x = 136,412,637,483.74/578,049.90
  6. Step 6: Final answer
    x = 235,987.65

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.