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Finding the Fourth Proportional to 248,088.78, 371,705.18 and 135,849.78

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Solution

The fourth proportional to 248,088.78, 371,705.18 and 135,849.78 is: 203,540.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,088.78 : 371,705.18 = 135,849.78 : x
  2. Step 2: Convert to fraction form
    248,088.78/371,705.18 = 135,849.78/x
  3. Step 3: Cross multiply
    248,088.78x = 371,705.18 × 135,849.78
  4. Step 4: Simplify right side
    248,088.78x = 50,496,066,248.61
  5. Step 5: Solve for x
    x = 50,496,066,248.61/248,088.78
  6. Step 6: Final answer
    x = 203,540.31

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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.