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Finding the Fourth Proportional to 342,799.62, 473,007.24 and 215,385

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Solution

The fourth proportional to 342,799.62, 473,007.24 and 215,385 is: 297,195.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,799.62 : 473,007.24 = 215,385 : x
  2. Step 2: Convert to fraction form
    342,799.62/473,007.24 = 215,385/x
  3. Step 3: Cross multiply
    342,799.62x = 473,007.24 × 215,385
  4. Step 4: Simplify right side
    342,799.62x = 101,878,664,387.40
  5. Step 5: Solve for x
    x = 101,878,664,387.40/342,799.62
  6. Step 6: Final answer
    x = 297,195.97

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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.