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Finding the Fourth Proportional to 300,959.92, 415,354.38 and 171,917.70

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Solution

The fourth proportional to 300,959.92, 415,354.38 and 171,917.70 is: 237,263.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,959.92 : 415,354.38 = 171,917.70 : x
  2. Step 2: Convert to fraction form
    300,959.92/415,354.38 = 171,917.70/x
  3. Step 3: Cross multiply
    300,959.92x = 415,354.38 × 171,917.70
  4. Step 4: Simplify right side
    300,959.92x = 71,406,769,694.53
  5. Step 5: Solve for x
    x = 71,406,769,694.53/300,959.92
  6. Step 6: Final answer
    x = 237,263.39

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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.