Home / 242,411.12-363,633.24-82,421.92

Finding the Fourth Proportional to 242,411.12, 363,633.24 and 82,421.92

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Solution

The fourth proportional to 242,411.12, 363,633.24 and 82,421.92 is: 123,638.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,411.12 : 363,633.24 = 82,421.92 : x
  2. Step 2: Convert to fraction form
    242,411.12/363,633.24 = 82,421.92/x
  3. Step 3: Cross multiply
    242,411.12x = 363,633.24 × 82,421.92
  4. Step 4: Simplify right side
    242,411.12x = 29,971,349,816.62
  5. Step 5: Solve for x
    x = 29,971,349,816.62/242,411.12
  6. Step 6: Final answer
    x = 123,638.51

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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.