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Finding the Fourth Proportional to 288,774.25, 398,348.47 and 167,902.17

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Solution

The fourth proportional to 288,774.25, 398,348.47 and 167,902.17 is: 231,611.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,774.25 : 398,348.47 = 167,902.17 : x
  2. Step 2: Convert to fraction form
    288,774.25/398,348.47 = 167,902.17/x
  3. Step 3: Cross multiply
    288,774.25x = 398,348.47 × 167,902.17
  4. Step 4: Simplify right side
    288,774.25x = 66,883,571,689.67
  5. Step 5: Solve for x
    x = 66,883,571,689.67/288,774.25
  6. Step 6: Final answer
    x = 231,611.97

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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.