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Finding the Fourth Proportional to 478,037.31, 717,056.03 and 158,103.30

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Solution

The fourth proportional to 478,037.31, 717,056.03 and 158,103.30 is: 237,154.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,037.31 : 717,056.03 = 158,103.30 : x
  2. Step 2: Convert to fraction form
    478,037.31/717,056.03 = 158,103.30/x
  3. Step 3: Cross multiply
    478,037.31x = 717,056.03 × 158,103.30
  4. Step 4: Simplify right side
    478,037.31x = 113,368,923,837.38
  5. Step 5: Solve for x
    x = 113,368,923,837.38/478,037.31
  6. Step 6: Final answer
    x = 237,154.97

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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.