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Finding the Fourth Proportional to 288,755.72, 398,532.10 and 167,967.04

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Solution

The fourth proportional to 288,755.72, 398,532.10 and 167,967.04 is: 231,823.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,755.72 : 398,532.10 = 167,967.04 : x
  2. Step 2: Convert to fraction form
    288,755.72/398,532.10 = 167,967.04/x
  3. Step 3: Cross multiply
    288,755.72x = 398,532.10 × 167,967.04
  4. Step 4: Simplify right side
    288,755.72x = 66,940,257,181.98
  5. Step 5: Solve for x
    x = 66,940,257,181.98/288,755.72
  6. Step 6: Final answer
    x = 231,823.14

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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.