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Finding the Fourth Proportional to 253,526.55, 380,335.08 and 85,101.73

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Solution

The fourth proportional to 253,526.55, 380,335.08 and 85,101.73 is: 127,667.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,526.55 : 380,335.08 = 85,101.73 : x
  2. Step 2: Convert to fraction form
    253,526.55/380,335.08 = 85,101.73/x
  3. Step 3: Cross multiply
    253,526.55x = 380,335.08 × 85,101.73
  4. Step 4: Simplify right side
    253,526.55x = 32,367,173,287.69
  5. Step 5: Solve for x
    x = 32,367,173,287.69/253,526.55
  6. Step 6: Final answer
    x = 127,667.79

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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.