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Finding the Fourth Proportional to 238,803.92, 329,542.80 and 129,904.64

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Solution

The fourth proportional to 238,803.92, 329,542.80 and 129,904.64 is: 179,264.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,803.92 : 329,542.80 = 129,904.64 : x
  2. Step 2: Convert to fraction form
    238,803.92/329,542.80 = 129,904.64/x
  3. Step 3: Cross multiply
    238,803.92x = 329,542.80 × 129,904.64
  4. Step 4: Simplify right side
    238,803.92x = 42,809,138,798.59
  5. Step 5: Solve for x
    x = 42,809,138,798.59/238,803.92
  6. Step 6: Final answer
    x = 179,264.81

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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.