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Finding the Fourth Proportional to 230,060.92, 317,477.89 and 128,086.45

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Solution

The fourth proportional to 230,060.92, 317,477.89 and 128,086.45 is: 176,755.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,060.92 : 317,477.89 = 128,086.45 : x
  2. Step 2: Convert to fraction form
    230,060.92/317,477.89 = 128,086.45/x
  3. Step 3: Cross multiply
    230,060.92x = 317,477.89 × 128,086.45
  4. Step 4: Simplify right side
    230,060.92x = 40,664,615,883.59
  5. Step 5: Solve for x
    x = 40,664,615,883.59/230,060.92
  6. Step 6: Final answer
    x = 176,755.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.