Home / 319,414.07-479,187.23-129,874.46

Finding the Fourth Proportional to 319,414.07, 479,187.23 and 129,874.46

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Solution

The fourth proportional to 319,414.07, 479,187.23 and 129,874.46 is: 194,838.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,414.07 : 479,187.23 = 129,874.46 : x
  2. Step 2: Convert to fraction form
    319,414.07/479,187.23 = 129,874.46/x
  3. Step 3: Cross multiply
    319,414.07x = 479,187.23 × 129,874.46
  4. Step 4: Simplify right side
    319,414.07x = 62,234,179,689.84
  5. Step 5: Solve for x
    x = 62,234,179,689.84/319,414.07
  6. Step 6: Final answer
    x = 194,838.57

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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.