Home / 420,251.15-579,935.10-229,264.49

Finding the Fourth Proportional to 420,251.15, 579,935.10 and 229,264.49

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Solution

The fourth proportional to 420,251.15, 579,935.10 and 229,264.49 is: 316,378.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,251.15 : 579,935.10 = 229,264.49 : x
  2. Step 2: Convert to fraction form
    420,251.15/579,935.10 = 229,264.49/x
  3. Step 3: Cross multiply
    420,251.15x = 579,935.10 × 229,264.49
  4. Step 4: Simplify right side
    420,251.15x = 132,958,520,888.60
  5. Step 5: Solve for x
    x = 132,958,520,888.60/420,251.15
  6. Step 6: Final answer
    x = 316,378.72

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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.