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Finding the Fourth Proportional to 300,916.20, 415,154.52 and 180,060.96

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Solution

The fourth proportional to 300,916.20, 415,154.52 and 180,060.96 is: 248,418.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,916.20 : 415,154.52 = 180,060.96 : x
  2. Step 2: Convert to fraction form
    300,916.20/415,154.52 = 180,060.96/x
  3. Step 3: Cross multiply
    300,916.20x = 415,154.52 × 180,060.96
  4. Step 4: Simplify right side
    300,916.20x = 74,753,121,419.54
  5. Step 5: Solve for x
    x = 74,753,121,419.54/300,916.20
  6. Step 6: Final answer
    x = 248,418.40

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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.