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Finding the Fourth Proportional to 172,598.50, 238,063.21 and 115,208.88

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Solution

The fourth proportional to 172,598.50, 238,063.21 and 115,208.88 is: 158,906.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,598.50 : 238,063.21 = 115,208.88 : x
  2. Step 2: Convert to fraction form
    172,598.50/238,063.21 = 115,208.88/x
  3. Step 3: Cross multiply
    172,598.50x = 238,063.21 × 115,208.88
  4. Step 4: Simplify right side
    172,598.50x = 27,426,995,793.30
  5. Step 5: Solve for x
    x = 27,426,995,793.30/172,598.50
  6. Step 6: Final answer
    x = 158,906.34

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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.