Home / 262,390.20-393,585.30-209,902.20

Finding the Fourth Proportional to 262,390.20, 393,585.30 and 209,902.20

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Solution

The fourth proportional to 262,390.20, 393,585.30 and 209,902.20 is: 314,853.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,390.20 : 393,585.30 = 209,902.20 : x
  2. Step 2: Convert to fraction form
    262,390.20/393,585.30 = 209,902.20/x
  3. Step 3: Cross multiply
    262,390.20x = 393,585.30 × 209,902.20
  4. Step 4: Simplify right side
    262,390.20x = 82,614,420,357.66
  5. Step 5: Solve for x
    x = 82,614,420,357.66/262,390.20
  6. Step 6: Final answer
    x = 314,853.30

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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.