Home / 399,272.20-598,908.30-257,554.60

Finding the Fourth Proportional to 399,272.20, 598,908.30 and 257,554.60

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Solution

The fourth proportional to 399,272.20, 598,908.30 and 257,554.60 is: 386,331.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,272.20 : 598,908.30 = 257,554.60 : x
  2. Step 2: Convert to fraction form
    399,272.20/598,908.30 = 257,554.60/x
  3. Step 3: Cross multiply
    399,272.20x = 598,908.30 × 257,554.60
  4. Step 4: Simplify right side
    399,272.20x = 154,251,587,643.18
  5. Step 5: Solve for x
    x = 154,251,587,643.18/399,272.20
  6. Step 6: Final answer
    x = 386,331.90

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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.