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Finding the Fourth Proportional to 188,899.92, 260,238.53 and 131,440.43

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Solution

The fourth proportional to 188,899.92, 260,238.53 and 131,440.43 is: 181,079.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,899.92 : 260,238.53 = 131,440.43 : x
  2. Step 2: Convert to fraction form
    188,899.92/260,238.53 = 131,440.43/x
  3. Step 3: Cross multiply
    188,899.92x = 260,238.53 × 131,440.43
  4. Step 4: Simplify right side
    188,899.92x = 34,205,864,047.57
  5. Step 5: Solve for x
    x = 34,205,864,047.57/188,899.92
  6. Step 6: Final answer
    x = 181,079.29

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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.