Home / 396,844.65-547,651.53-215,560.10

Finding the Fourth Proportional to 396,844.65, 547,651.53 and 215,560.10

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Solution

The fourth proportional to 396,844.65, 547,651.53 and 215,560.10 is: 297,476.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,844.65 : 547,651.53 = 215,560.10 : x
  2. Step 2: Convert to fraction form
    396,844.65/547,651.53 = 215,560.10/x
  3. Step 3: Cross multiply
    396,844.65x = 547,651.53 × 215,560.10
  4. Step 4: Simplify right side
    396,844.65x = 118,051,819,941.08
  5. Step 5: Solve for x
    x = 118,051,819,941.08/396,844.65
  6. Step 6: Final answer
    x = 297,476.15

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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.