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Finding the Fourth Proportional to 288,994.02, 398,891.97 and 168,158.73

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Solution

The fourth proportional to 288,994.02, 398,891.97 and 168,158.73 is: 232,105.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,994.02 : 398,891.97 = 168,158.73 : x
  2. Step 2: Convert to fraction form
    288,994.02/398,891.97 = 168,158.73/x
  3. Step 3: Cross multiply
    288,994.02x = 398,891.97 × 168,158.73
  4. Step 4: Simplify right side
    288,994.02x = 67,077,167,082.40
  5. Step 5: Solve for x
    x = 67,077,167,082.40/288,994.02
  6. Step 6: Final answer
    x = 232,105.73

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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.