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Finding the Fourth Proportional to 478,487.57, 717,731.36 and 141,501.98

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Solution

The fourth proportional to 478,487.57, 717,731.36 and 141,501.98 is: 212,252.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,487.57 : 717,731.36 = 141,501.98 : x
  2. Step 2: Convert to fraction form
    478,487.57/717,731.36 = 141,501.98/x
  3. Step 3: Cross multiply
    478,487.57x = 717,731.36 × 141,501.98
  4. Step 4: Simplify right side
    478,487.57x = 101,560,404,251.93
  5. Step 5: Solve for x
    x = 101,560,404,251.93/478,487.57
  6. Step 6: Final answer
    x = 212,252.96

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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.