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Finding the Fourth Proportional to 266,772.48, 399,714.48 and 187,720.62

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Solution

The fourth proportional to 266,772.48, 399,714.48 and 187,720.62 is: 281,268.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,772.48 : 399,714.48 = 187,720.62 : x
  2. Step 2: Convert to fraction form
    266,772.48/399,714.48 = 187,720.62/x
  3. Step 3: Cross multiply
    266,772.48x = 399,714.48 × 187,720.62
  4. Step 4: Simplify right side
    266,772.48x = 75,034,650,008.58
  5. Step 5: Solve for x
    x = 75,034,650,008.58/266,772.48
  6. Step 6: Final answer
    x = 281,268.33

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1.5x scale

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.