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Finding the Fourth Proportional to 266,766.48, 399,705.48 and 187,714.62

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Solution

The fourth proportional to 266,766.48, 399,705.48 and 187,714.62 is: 281,259.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,766.48 : 399,705.48 = 187,714.62 : x
  2. Step 2: Convert to fraction form
    266,766.48/399,705.48 = 187,714.62/x
  3. Step 3: Cross multiply
    266,766.48x = 399,705.48 × 187,714.62
  4. Step 4: Simplify right side
    266,766.48x = 75,030,562,290.12
  5. Step 5: Solve for x
    x = 75,030,562,290.12/266,766.48
  6. Step 6: Final answer
    x = 281,259.33

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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.