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Finding the Fourth Proportional to 302,502.80, 453,719.60 and 80,904.08

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Solution

The fourth proportional to 302,502.80, 453,719.60 and 80,904.08 is: 121,346.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,502.80 : 453,719.60 = 80,904.08 : x
  2. Step 2: Convert to fraction form
    302,502.80/453,719.60 = 80,904.08/x
  3. Step 3: Cross multiply
    302,502.80x = 453,719.60 × 80,904.08
  4. Step 4: Simplify right side
    302,502.80x = 36,707,766,815.97
  5. Step 5: Solve for x
    x = 36,707,766,815.97/302,502.80
  6. Step 6: Final answer
    x = 121,346.87

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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.