Home / 172,538.80-238,233.28-169,783.20

Finding the Fourth Proportional to 172,538.80, 238,233.28 and 169,783.20

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Solution

The fourth proportional to 172,538.80, 238,233.28 and 169,783.20 is: 234,428.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,538.80 : 238,233.28 = 169,783.20 : x
  2. Step 2: Convert to fraction form
    172,538.80/238,233.28 = 169,783.20/x
  3. Step 3: Cross multiply
    172,538.80x = 238,233.28 × 169,783.20
  4. Step 4: Simplify right side
    172,538.80x = 40,448,008,624.90
  5. Step 5: Solve for x
    x = 40,448,008,624.90/172,538.80
  6. Step 6: Final answer
    x = 234,428.48

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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.