Home / 288,541.34-398,074.20-167,661

Finding the Fourth Proportional to 288,541.34, 398,074.20 and 167,661

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Solution

The fourth proportional to 288,541.34, 398,074.20 and 167,661 is: 231,306.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,541.34 : 398,074.20 = 167,661 : x
  2. Step 2: Convert to fraction form
    288,541.34/398,074.20 = 167,661/x
  3. Step 3: Cross multiply
    288,541.34x = 398,074.20 × 167,661
  4. Step 4: Simplify right side
    288,541.34x = 66,741,518,446.20
  5. Step 5: Solve for x
    x = 66,741,518,446.20/288,541.34
  6. Step 6: Final answer
    x = 231,306.61

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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.