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Finding the Fourth Proportional to 288,475.68, 398,069.60 and 167,615.68

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Solution

The fourth proportional to 288,475.68, 398,069.60 and 167,615.68 is: 231,294.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,475.68 : 398,069.60 = 167,615.68 : x
  2. Step 2: Convert to fraction form
    288,475.68/398,069.60 = 167,615.68/x
  3. Step 3: Cross multiply
    288,475.68x = 398,069.60 × 167,615.68
  4. Step 4: Simplify right side
    288,475.68x = 66,722,706,691.33
  5. Step 5: Solve for x
    x = 66,722,706,691.33/288,475.68
  6. Step 6: Final answer
    x = 231,294.04

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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.