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Finding the Fourth Proportional to 288,189.52, 397,785.99 and 167,385.10

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Solution

The fourth proportional to 288,189.52, 397,785.99 and 167,385.10 is: 231,040.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,189.52 : 397,785.99 = 167,385.10 : x
  2. Step 2: Convert to fraction form
    288,189.52/397,785.99 = 167,385.10/x
  3. Step 3: Cross multiply
    288,189.52x = 397,785.99 × 167,385.10
  4. Step 4: Simplify right side
    288,189.52x = 66,583,445,725.82
  5. Step 5: Solve for x
    x = 66,583,445,725.82/288,189.52
  6. Step 6: Final answer
    x = 231,040.49

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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.