Home / 385,271.06-531,645.19-215,472.38

Finding the Fourth Proportional to 385,271.06, 531,645.19 and 215,472.38

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Solution

The fourth proportional to 385,271.06, 531,645.19 and 215,472.38 is: 297,335.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,271.06 : 531,645.19 = 215,472.38 : x
  2. Step 2: Convert to fraction form
    385,271.06/531,645.19 = 215,472.38/x
  3. Step 3: Cross multiply
    385,271.06x = 531,645.19 × 215,472.38
  4. Step 4: Simplify right side
    385,271.06x = 114,554,851,207.95
  5. Step 5: Solve for x
    x = 114,554,851,207.95/385,271.06
  6. Step 6: Final answer
    x = 297,335.73

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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.