Home / 275,112.48-379,655.17-154,253.77

Finding the Fourth Proportional to 275,112.48, 379,655.17 and 154,253.77

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Solution

The fourth proportional to 275,112.48, 379,655.17 and 154,253.77 is: 212,870.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,112.48 : 379,655.17 = 154,253.77 : x
  2. Step 2: Convert to fraction form
    275,112.48/379,655.17 = 154,253.77/x
  3. Step 3: Cross multiply
    275,112.48x = 379,655.17 × 154,253.77
  4. Step 4: Simplify right side
    275,112.48x = 58,563,239,937.72
  5. Step 5: Solve for x
    x = 58,563,239,937.72/275,112.48
  6. Step 6: Final answer
    x = 212,870.17

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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.