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Finding the Fourth Proportional to 256,759.92, 384,991.92 and 98,967.60

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Solution

The fourth proportional to 256,759.92, 384,991.92 and 98,967.60 is: 148,394.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,759.92 : 384,991.92 = 98,967.60 : x
  2. Step 2: Convert to fraction form
    256,759.92/384,991.92 = 98,967.60/x
  3. Step 3: Cross multiply
    256,759.92x = 384,991.92 × 98,967.60
  4. Step 4: Simplify right side
    256,759.92x = 38,101,726,341.79
  5. Step 5: Solve for x
    x = 38,101,726,341.79/256,759.92
  6. Step 6: Final answer
    x = 148,394.37

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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.