Home / 288,520.14-398,089.56-167,589.57

Finding the Fourth Proportional to 288,520.14, 398,089.56 and 167,589.57

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Solution

The fourth proportional to 288,520.14, 398,089.56 and 167,589.57 is: 231,233.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,520.14 : 398,089.56 = 167,589.57 : x
  2. Step 2: Convert to fraction form
    288,520.14/398,089.56 = 167,589.57/x
  3. Step 3: Cross multiply
    288,520.14x = 398,089.56 × 167,589.57
  4. Step 4: Simplify right side
    288,520.14x = 66,715,658,181.89
  5. Step 5: Solve for x
    x = 66,715,658,181.89/288,520.14
  6. Step 6: Final answer
    x = 231,233.97

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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.