Home / 420,250.46-579,934.15-229,263.80

Finding the Fourth Proportional to 420,250.46, 579,934.15 and 229,263.80

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Solution

The fourth proportional to 420,250.46, 579,934.15 and 229,263.80 is: 316,377.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,250.46 : 579,934.15 = 229,263.80 : x
  2. Step 2: Convert to fraction form
    420,250.46/579,934.15 = 229,263.80/x
  3. Step 3: Cross multiply
    420,250.46x = 579,934.15 × 229,263.80
  4. Step 4: Simplify right side
    420,250.46x = 132,957,903,505.94
  5. Step 5: Solve for x
    x = 132,957,903,505.94/420,250.46
  6. Step 6: Final answer
    x = 316,377.77

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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.