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Finding the Fourth Proportional to 240,279.72, 360,381.72 and 80,354.42

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Solution

The fourth proportional to 240,279.72, 360,381.72 and 80,354.42 is: 120,518.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,279.72 : 360,381.72 = 80,354.42 : x
  2. Step 2: Convert to fraction form
    240,279.72/360,381.72 = 80,354.42/x
  3. Step 3: Cross multiply
    240,279.72x = 360,381.72 × 80,354.42
  4. Step 4: Simplify right side
    240,279.72x = 28,958,264,089.20
  5. Step 5: Solve for x
    x = 28,958,264,089.20/240,279.72
  6. Step 6: Final answer
    x = 120,518.97

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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.