Home / 399,120.14-598,362.30-230,449.14

Finding the Fourth Proportional to 399,120.14, 598,362.30 and 230,449.14

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Solution

The fourth proportional to 399,120.14, 598,362.30 and 230,449.14 is: 345,490.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,120.14 : 598,362.30 = 230,449.14 : x
  2. Step 2: Convert to fraction form
    399,120.14/598,362.30 = 230,449.14/x
  3. Step 3: Cross multiply
    399,120.14x = 598,362.30 × 230,449.14
  4. Step 4: Simplify right side
    399,120.14x = 137,892,077,443.42
  5. Step 5: Solve for x
    x = 137,892,077,443.42/399,120.14
  6. Step 6: Final answer
    x = 345,490.15

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1.5x scale

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.