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Finding the Fourth Proportional to 238,562.68, 329,212.80 and 131,130.40

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Solution

The fourth proportional to 238,562.68, 329,212.80 and 131,130.40 is: 180,957.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,562.68 : 329,212.80 = 131,130.40 : x
  2. Step 2: Convert to fraction form
    238,562.68/329,212.80 = 131,130.40/x
  3. Step 3: Cross multiply
    238,562.68x = 329,212.80 × 131,130.40
  4. Step 4: Simplify right side
    238,562.68x = 43,169,805,326.09
  5. Step 5: Solve for x
    x = 43,169,805,326.09/238,562.68
  6. Step 6: Final answer
    x = 180,957.92

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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.