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Finding the Fourth Proportional to 638,325.30, 957,520.74 and 165,014.76

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Solution

The fourth proportional to 638,325.30, 957,520.74 and 165,014.76 is: 247,530.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,325.30 : 957,520.74 = 165,014.76 : x
  2. Step 2: Convert to fraction form
    638,325.30/957,520.74 = 165,014.76/x
  3. Step 3: Cross multiply
    638,325.30x = 957,520.74 × 165,014.76
  4. Step 4: Simplify right side
    638,325.30x = 158,005,055,106.12
  5. Step 5: Solve for x
    x = 158,005,055,106.12/638,325.30
  6. Step 6: Final answer
    x = 247,530.62

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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.