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Finding the Fourth Proportional to 172,633.92, 238,112.04 and 115,244.28

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Solution

The fourth proportional to 172,633.92, 238,112.04 and 115,244.28 is: 158,955.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,633.92 : 238,112.04 = 115,244.28 : x
  2. Step 2: Convert to fraction form
    172,633.92/238,112.04 = 115,244.28/x
  3. Step 3: Cross multiply
    172,633.92x = 238,112.04 × 115,244.28
  4. Step 4: Simplify right side
    172,633.92x = 27,441,050,609.13
  5. Step 5: Solve for x
    x = 27,441,050,609.13/172,633.92
  6. Step 6: Final answer
    x = 158,955.15

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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.