Home / 242,320.78-363,538.68-76,108.78

Finding the Fourth Proportional to 242,320.78, 363,538.68 and 76,108.78

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Solution

The fourth proportional to 242,320.78, 363,538.68 and 76,108.78 is: 114,181.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,320.78 : 363,538.68 = 76,108.78 : x
  2. Step 2: Convert to fraction form
    242,320.78/363,538.68 = 76,108.78/x
  3. Step 3: Cross multiply
    242,320.78x = 363,538.68 × 76,108.78
  4. Step 4: Simplify right side
    242,320.78x = 27,668,485,417.61
  5. Step 5: Solve for x
    x = 27,668,485,417.61/242,320.78
  6. Step 6: Final answer
    x = 114,181.23

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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.