Home / 331,316.30-496,974.45-278,828.30

Finding the Fourth Proportional to 331,316.30, 496,974.45 and 278,828.30

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Solution

The fourth proportional to 331,316.30, 496,974.45 and 278,828.30 is: 418,242.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,316.30 : 496,974.45 = 278,828.30 : x
  2. Step 2: Convert to fraction form
    331,316.30/496,974.45 = 278,828.30/x
  3. Step 3: Cross multiply
    331,316.30x = 496,974.45 × 278,828.30
  4. Step 4: Simplify right side
    331,316.30x = 138,570,541,036.94
  5. Step 5: Solve for x
    x = 138,570,541,036.94/331,316.30
  6. Step 6: Final answer
    x = 418,242.45

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Similar ratio
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1.5x scale

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.