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Finding the Fourth Proportional to 398,049.80, 596,297.10 and 239,808.20

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Solution

The fourth proportional to 398,049.80, 596,297.10 and 239,808.20 is: 359,243.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,049.80 : 596,297.10 = 239,808.20 : x
  2. Step 2: Convert to fraction form
    398,049.80/596,297.10 = 239,808.20/x
  3. Step 3: Cross multiply
    398,049.80x = 596,297.10 × 239,808.20
  4. Step 4: Simplify right side
    398,049.80x = 142,996,934,216.22
  5. Step 5: Solve for x
    x = 142,996,934,216.22/398,049.80
  6. Step 6: Final answer
    x = 359,243.83

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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.