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Finding the Fourth Proportional to 310,542.08, 428,549.76 and 176,410.88

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Solution

The fourth proportional to 310,542.08, 428,549.76 and 176,410.88 is: 243,447.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,542.08 : 428,549.76 = 176,410.88 : x
  2. Step 2: Convert to fraction form
    310,542.08/428,549.76 = 176,410.88/x
  3. Step 3: Cross multiply
    310,542.08x = 428,549.76 × 176,410.88
  4. Step 4: Simplify right side
    310,542.08x = 75,600,840,285.39
  5. Step 5: Solve for x
    x = 75,600,840,285.39/310,542.08
  6. Step 6: Final answer
    x = 243,447.97

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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.