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Finding the Fourth Proportional to 160,245.84, 240,267 and 85,319.76

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Solution

The fourth proportional to 160,245.84, 240,267 and 85,319.76 is: 127,925.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,245.84 : 240,267 = 85,319.76 : x
  2. Step 2: Convert to fraction form
    160,245.84/240,267 = 85,319.76/x
  3. Step 3: Cross multiply
    160,245.84x = 240,267 × 85,319.76
  4. Step 4: Simplify right side
    160,245.84x = 20,499,522,775.92
  5. Step 5: Solve for x
    x = 20,499,522,775.92/160,245.84
  6. Step 6: Final answer
    x = 127,925.46

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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.