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Finding the Fourth Proportional to 478,496.20, 717,744.32 and 141,510.62

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Solution

The fourth proportional to 478,496.20, 717,744.32 and 141,510.62 is: 212,265.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,496.20 : 717,744.32 = 141,510.62 : x
  2. Step 2: Convert to fraction form
    478,496.20/717,744.32 = 141,510.62/x
  3. Step 3: Cross multiply
    478,496.20x = 717,744.32 × 141,510.62
  4. Step 4: Simplify right side
    478,496.20x = 101,568,443,724.68
  5. Step 5: Solve for x
    x = 101,568,443,724.68/478,496.20
  6. Step 6: Final answer
    x = 212,265.94

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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.