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Finding the Fourth Proportional to 406,372.77, 609,616.31 and 169,661.61

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Solution

The fourth proportional to 406,372.77, 609,616.31 and 169,661.61 is: 254,516.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,372.77 : 609,616.31 = 169,661.61 : x
  2. Step 2: Convert to fraction form
    406,372.77/609,616.31 = 169,661.61/x
  3. Step 3: Cross multiply
    406,372.77x = 609,616.31 × 169,661.61
  4. Step 4: Simplify right side
    406,372.77x = 103,428,483,788.55
  5. Step 5: Solve for x
    x = 103,428,483,788.55/406,372.77
  6. Step 6: Final answer
    x = 254,516.28

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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.