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Finding the Fourth Proportional to 201,548.61, 278,044.02 and 129,951.63

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Solution

The fourth proportional to 201,548.61, 278,044.02 and 129,951.63 is: 179,273.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,548.61 : 278,044.02 = 129,951.63 : x
  2. Step 2: Convert to fraction form
    201,548.61/278,044.02 = 129,951.63/x
  3. Step 3: Cross multiply
    201,548.61x = 278,044.02 × 129,951.63
  4. Step 4: Simplify right side
    201,548.61x = 36,132,273,610.75
  5. Step 5: Solve for x
    x = 36,132,273,610.75/201,548.61
  6. Step 6: Final answer
    x = 179,273.25

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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.