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Finding the Fourth Proportional to 256,697.48, 384,258.00 and 161,481.85

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Solution

The fourth proportional to 256,697.48, 384,258.00 and 161,481.85 is: 241,726.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,697.48 : 384,258.00 = 161,481.85 : x
  2. Step 2: Convert to fraction form
    256,697.48/384,258.00 = 161,481.85/x
  3. Step 3: Cross multiply
    256,697.48x = 384,258.00 × 161,481.85
  4. Step 4: Simplify right side
    256,697.48x = 62,050,689,988.60
  5. Step 5: Solve for x
    x = 62,050,689,988.60/256,697.48
  6. Step 6: Final answer
    x = 241,726.92

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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.