Home / 261,346.82-391,675.77-103,489.16

Finding the Fourth Proportional to 261,346.82, 391,675.77 and 103,489.16

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Solution

The fourth proportional to 261,346.82, 391,675.77 and 103,489.16 is: 155,097.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,346.82 : 391,675.77 = 103,489.16 : x
  2. Step 2: Convert to fraction form
    261,346.82/391,675.77 = 103,489.16/x
  3. Step 3: Cross multiply
    261,346.82x = 391,675.77 × 103,489.16
  4. Step 4: Simplify right side
    261,346.82x = 40,534,194,471.27
  5. Step 5: Solve for x
    x = 40,534,194,471.27/261,346.82
  6. Step 6: Final answer
    x = 155,097.33

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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.