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Finding the Fourth Proportional to 636,847.65, 955,164.25 and 181,406.89

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Solution

The fourth proportional to 636,847.65, 955,164.25 and 181,406.89 is: 272,079.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,847.65 : 955,164.25 = 181,406.89 : x
  2. Step 2: Convert to fraction form
    636,847.65/955,164.25 = 181,406.89/x
  3. Step 3: Cross multiply
    636,847.65x = 955,164.25 × 181,406.89
  4. Step 4: Simplify right side
    636,847.65x = 173,273,377,452.40
  5. Step 5: Solve for x
    x = 173,273,377,452.40/636,847.65
  6. Step 6: Final answer
    x = 272,079.79

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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.