Home / 399,233.30-598,849.95-257,515.70

Finding the Fourth Proportional to 399,233.30, 598,849.95 and 257,515.70

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Solution

The fourth proportional to 399,233.30, 598,849.95 and 257,515.70 is: 386,273.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,233.30 : 598,849.95 = 257,515.70 : x
  2. Step 2: Convert to fraction form
    399,233.30/598,849.95 = 257,515.70/x
  3. Step 3: Cross multiply
    399,233.30x = 598,849.95 × 257,515.70
  4. Step 4: Simplify right side
    399,233.30x = 154,213,264,069.22
  5. Step 5: Solve for x
    x = 154,213,264,069.22/399,233.30
  6. Step 6: Final answer
    x = 386,273.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.