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Finding the Fourth Proportional to 288,230.20, 397,891.85 and 167,347.42

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Solution

The fourth proportional to 288,230.20, 397,891.85 and 167,347.42 is: 231,017.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,230.20 : 397,891.85 = 167,347.42 : x
  2. Step 2: Convert to fraction form
    288,230.20/397,891.85 = 167,347.42/x
  3. Step 3: Cross multiply
    288,230.20x = 397,891.85 × 167,347.42
  4. Step 4: Simplify right side
    288,230.20x = 66,586,172,705.06
  5. Step 5: Solve for x
    x = 66,586,172,705.06/288,230.20
  6. Step 6: Final answer
    x = 231,017.34

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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.