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Finding the Fourth Proportional to 478,038.31, 717,057.53 and 158,104.30

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Solution

The fourth proportional to 478,038.31, 717,057.53 and 158,104.30 is: 237,156.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,038.31 : 717,057.53 = 158,104.30 : x
  2. Step 2: Convert to fraction form
    478,038.31/717,057.53 = 158,104.30/x
  3. Step 3: Cross multiply
    478,038.31x = 717,057.53 × 158,104.30
  4. Step 4: Simplify right side
    478,038.31x = 113,369,878,840.38
  5. Step 5: Solve for x
    x = 113,369,878,840.38/478,038.31
  6. Step 6: Final answer
    x = 237,156.47

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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.