Home / 420,251.58-579,935.70-229,264.92

Finding the Fourth Proportional to 420,251.58, 579,935.70 and 229,264.92

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Solution

The fourth proportional to 420,251.58, 579,935.70 and 229,264.92 is: 316,379.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,251.58 : 579,935.70 = 229,264.92 : x
  2. Step 2: Convert to fraction form
    420,251.58/579,935.70 = 229,264.92/x
  3. Step 3: Cross multiply
    420,251.58x = 579,935.70 × 229,264.92
  4. Step 4: Simplify right side
    420,251.58x = 132,958,911,865.64
  5. Step 5: Solve for x
    x = 132,958,911,865.64/420,251.58
  6. Step 6: Final answer
    x = 316,379.33

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1.5x scale

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.