Home / 378,061.05-521,733.65-232,811.85

Finding the Fourth Proportional to 378,061.05, 521,733.65 and 232,811.85

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Solution

The fourth proportional to 378,061.05, 521,733.65 and 232,811.85 is: 321,286.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,061.05 : 521,733.65 = 232,811.85 : x
  2. Step 2: Convert to fraction form
    378,061.05/521,733.65 = 232,811.85/x
  3. Step 3: Cross multiply
    378,061.05x = 521,733.65 × 232,811.85
  4. Step 4: Simplify right side
    378,061.05x = 121,465,775,099.69
  5. Step 5: Solve for x
    x = 121,465,775,099.69/378,061.05
  6. Step 6: Final answer
    x = 321,286.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.