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Finding the Fourth Proportional to 240,287.72, 360,393.72 and 80,362.44

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Solution

The fourth proportional to 240,287.72, 360,393.72 and 80,362.44 is: 120,531.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,287.72 : 360,393.72 = 80,362.44 : x
  2. Step 2: Convert to fraction form
    240,287.72/360,393.72 = 80,362.44/x
  3. Step 3: Cross multiply
    240,287.72x = 360,393.72 × 80,362.44
  4. Step 4: Simplify right side
    240,287.72x = 28,962,118,699.88
  5. Step 5: Solve for x
    x = 28,962,118,699.88/240,287.72
  6. Step 6: Final answer
    x = 120,531.00

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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.