Home / 261,283.27-391,882.96-71,699.36

Finding the Fourth Proportional to 261,283.27, 391,882.96 and 71,699.36

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Solution

The fourth proportional to 261,283.27, 391,882.96 and 71,699.36 is: 107,537.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,283.27 : 391,882.96 = 71,699.36 : x
  2. Step 2: Convert to fraction form
    261,283.27/391,882.96 = 71,699.36/x
  3. Step 3: Cross multiply
    261,283.27x = 391,882.96 × 71,699.36
  4. Step 4: Simplify right side
    261,283.27x = 28,097,758,962.15
  5. Step 5: Solve for x
    x = 28,097,758,962.15/261,283.27
  6. Step 6: Final answer
    x = 107,537.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.