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Finding the Fourth Proportional to 288,554.52, 398,204.40 and 161,230.22

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Solution

The fourth proportional to 288,554.52, 398,204.40 and 161,230.22 is: 222,497.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,554.52 : 398,204.40 = 161,230.22 : x
  2. Step 2: Convert to fraction form
    288,554.52/398,204.40 = 161,230.22/x
  3. Step 3: Cross multiply
    288,554.52x = 398,204.40 × 161,230.22
  4. Step 4: Simplify right side
    288,554.52x = 64,202,581,025.95
  5. Step 5: Solve for x
    x = 64,202,581,025.95/288,554.52
  6. Step 6: Final answer
    x = 222,497.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.