Home / 296,836.66-445,259.85-86,486.14

Finding the Fourth Proportional to 296,836.66, 445,259.85 and 86,486.14

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Solution

The fourth proportional to 296,836.66, 445,259.85 and 86,486.14 is: 129,730.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,836.66 : 445,259.85 = 86,486.14 : x
  2. Step 2: Convert to fraction form
    296,836.66/445,259.85 = 86,486.14/x
  3. Step 3: Cross multiply
    296,836.66x = 445,259.85 × 86,486.14
  4. Step 4: Simplify right side
    296,836.66x = 38,508,805,723.48
  5. Step 5: Solve for x
    x = 38,508,805,723.48/296,836.66
  6. Step 6: Final answer
    x = 129,730.63

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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.