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Finding the Fourth Proportional to 252,957.28, 379,435.76 and 75,588.72

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Solution

The fourth proportional to 252,957.28, 379,435.76 and 75,588.72 is: 113,383.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,957.28 : 379,435.76 = 75,588.72 : x
  2. Step 2: Convert to fraction form
    252,957.28/379,435.76 = 75,588.72/x
  3. Step 3: Cross multiply
    252,957.28x = 379,435.76 × 75,588.72
  4. Step 4: Simplify right side
    252,957.28x = 28,681,063,420.63
  5. Step 5: Solve for x
    x = 28,681,063,420.63/252,957.28
  6. Step 6: Final answer
    x = 113,383.03

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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.