Home / 288,131.28-397,604.98-160,815.08

Finding the Fourth Proportional to 288,131.28, 397,604.98 and 160,815.08

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Solution

The fourth proportional to 288,131.28, 397,604.98 and 160,815.08 is: 221,915.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,131.28 : 397,604.98 = 160,815.08 : x
  2. Step 2: Convert to fraction form
    288,131.28/397,604.98 = 160,815.08/x
  3. Step 3: Cross multiply
    288,131.28x = 397,604.98 × 160,815.08
  4. Step 4: Simplify right side
    288,131.28x = 63,940,876,667.10
  5. Step 5: Solve for x
    x = 63,940,876,667.10/288,131.28
  6. Step 6: Final answer
    x = 221,915.78

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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.