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Finding the Fourth Proportional to 172,268.92, 258,403.38 and 101,935

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Solution

The fourth proportional to 172,268.92, 258,403.38 and 101,935 is: 152,902.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,268.92 : 258,403.38 = 101,935 : x
  2. Step 2: Convert to fraction form
    172,268.92/258,403.38 = 101,935/x
  3. Step 3: Cross multiply
    172,268.92x = 258,403.38 × 101,935
  4. Step 4: Simplify right side
    172,268.92x = 26,340,348,540.30
  5. Step 5: Solve for x
    x = 26,340,348,540.30/172,268.92
  6. Step 6: Final answer
    x = 152,902.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.