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Finding the Fourth Proportional to 160,253.84, 240,279 and 85,327.76

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Solution

The fourth proportional to 160,253.84, 240,279 and 85,327.76 is: 127,937.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,253.84 : 240,279 = 85,327.76 : x
  2. Step 2: Convert to fraction form
    160,253.84/240,279 = 85,327.76/x
  3. Step 3: Cross multiply
    160,253.84x = 240,279 × 85,327.76
  4. Step 4: Simplify right side
    160,253.84x = 20,502,468,845.04
  5. Step 5: Solve for x
    x = 20,502,468,845.04/160,253.84
  6. Step 6: Final answer
    x = 127,937.46

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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.