Home / 420,250.64-579,934.41-229,263.98

Finding the Fourth Proportional to 420,250.64, 579,934.41 and 229,263.98

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Solution

The fourth proportional to 420,250.64, 579,934.41 and 229,263.98 is: 316,378.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,250.64 : 579,934.41 = 229,263.98 : x
  2. Step 2: Convert to fraction form
    420,250.64/579,934.41 = 229,263.98/x
  3. Step 3: Cross multiply
    420,250.64x = 579,934.41 × 229,263.98
  4. Step 4: Simplify right side
    420,250.64x = 132,958,071,565.65
  5. Step 5: Solve for x
    x = 132,958,071,565.65/420,250.64
  6. Step 6: Final answer
    x = 316,378.03

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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.