Home / 396,423.47-547,068.40-215,136.97

Finding the Fourth Proportional to 396,423.47, 547,068.40 and 215,136.97

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Solution

The fourth proportional to 396,423.47, 547,068.40 and 215,136.97 is: 296,891.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,423.47 : 547,068.40 = 215,136.97 : x
  2. Step 2: Convert to fraction form
    396,423.47/547,068.40 = 215,136.97/x
  3. Step 3: Cross multiply
    396,423.47x = 547,068.40 × 215,136.97
  4. Step 4: Simplify right side
    396,423.47x = 117,694,636,053.24
  5. Step 5: Solve for x
    x = 117,694,636,053.24/396,423.47
  6. Step 6: Final answer
    x = 296,891.19

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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.