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Finding the Fourth Proportional to 406,660.55, 609,744.51 and 181,979.10

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Solution

The fourth proportional to 406,660.55, 609,744.51 and 181,979.10 is: 272,858.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,660.55 : 609,744.51 = 181,979.10 : x
  2. Step 2: Convert to fraction form
    406,660.55/609,744.51 = 181,979.10/x
  3. Step 3: Cross multiply
    406,660.55x = 609,744.51 × 181,979.10
  4. Step 4: Simplify right side
    406,660.55x = 110,960,757,159.74
  5. Step 5: Solve for x
    x = 110,960,757,159.74/406,660.55
  6. Step 6: Final answer
    x = 272,858.43

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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.