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Finding the Fourth Proportional to 288,045.88, 397,439.68 and 167,117.12

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Solution

The fourth proportional to 288,045.88, 397,439.68 and 167,117.12 is: 230,584.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,045.88 : 397,439.68 = 167,117.12 : x
  2. Step 2: Convert to fraction form
    288,045.88/397,439.68 = 167,117.12/x
  3. Step 3: Cross multiply
    288,045.88x = 397,439.68 × 167,117.12
  4. Step 4: Simplify right side
    288,045.88x = 66,418,974,695.32
  5. Step 5: Solve for x
    x = 66,418,974,695.32/288,045.88
  6. Step 6: Final answer
    x = 230,584.71

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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.