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Finding the Fourth Proportional to 406,002.40, 608,744.40 and 169,439.20

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Solution

The fourth proportional to 406,002.40, 608,744.40 and 169,439.20 is: 254,050.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,002.40 : 608,744.40 = 169,439.20 : x
  2. Step 2: Convert to fraction form
    406,002.40/608,744.40 = 169,439.20/x
  3. Step 3: Cross multiply
    406,002.40x = 608,744.40 × 169,439.20
  4. Step 4: Simplify right side
    406,002.40x = 103,145,164,140.48
  5. Step 5: Solve for x
    x = 103,145,164,140.48/406,002.40
  6. Step 6: Final answer
    x = 254,050.63

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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.