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Finding the Fourth Proportional to 578,170.40, 867,255.60 and 157,445.60

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Solution

The fourth proportional to 578,170.40, 867,255.60 and 157,445.60 is: 236,168.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,170.40 : 867,255.60 = 157,445.60 : x
  2. Step 2: Convert to fraction form
    578,170.40/867,255.60 = 157,445.60/x
  3. Step 3: Cross multiply
    578,170.40x = 867,255.60 × 157,445.60
  4. Step 4: Simplify right side
    578,170.40x = 136,545,578,295.36
  5. Step 5: Solve for x
    x = 136,545,578,295.36/578,170.40
  6. Step 6: Final answer
    x = 236,168.40

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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.