Home / 385,320.24-531,732.60-215,560.44

Finding the Fourth Proportional to 385,320.24, 531,732.60 and 215,560.44

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Solution

The fourth proportional to 385,320.24, 531,732.60 and 215,560.44 is: 297,468.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,320.24 : 531,732.60 = 215,560.44 : x
  2. Step 2: Convert to fraction form
    385,320.24/531,732.60 = 215,560.44/x
  3. Step 3: Cross multiply
    385,320.24x = 531,732.60 × 215,560.44
  4. Step 4: Simplify right side
    385,320.24x = 114,620,513,218.34
  5. Step 5: Solve for x
    x = 114,620,513,218.34/385,320.24
  6. Step 6: Final answer
    x = 297,468.19

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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.