Home / 261,039.59-391,448.66-92,602.31

Finding the Fourth Proportional to 261,039.59, 391,448.66 and 92,602.31

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Solution

The fourth proportional to 261,039.59, 391,448.66 and 92,602.31 is: 138,864.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,039.59 : 391,448.66 = 92,602.31 : x
  2. Step 2: Convert to fraction form
    261,039.59/391,448.66 = 92,602.31/x
  3. Step 3: Cross multiply
    261,039.59x = 391,448.66 × 92,602.31
  4. Step 4: Simplify right side
    261,039.59x = 36,249,050,162.40
  5. Step 5: Solve for x
    x = 36,249,050,162.40/261,039.59
  6. Step 6: Final answer
    x = 138,864.19

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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.