Home / 420,222.17-579,934.00-238,950.97

Finding the Fourth Proportional to 420,222.17, 579,934.00 and 238,950.97

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Solution

The fourth proportional to 420,222.17, 579,934.00 and 238,950.97 is: 329,767.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,222.17 : 579,934.00 = 238,950.97 : x
  2. Step 2: Convert to fraction form
    420,222.17/579,934.00 = 238,950.97/x
  3. Step 3: Cross multiply
    420,222.17x = 579,934.00 × 238,950.97
  4. Step 4: Simplify right side
    420,222.17x = 138,575,790,684.83
  5. Step 5: Solve for x
    x = 138,575,790,684.83/420,222.17
  6. Step 6: Final answer
    x = 329,767.92

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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.