Home / 274,856.17-379,294.90-154,002.55

Finding the Fourth Proportional to 274,856.17, 379,294.90 and 154,002.55

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Solution

The fourth proportional to 274,856.17, 379,294.90 and 154,002.55 is: 212,519.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,856.17 : 379,294.90 = 154,002.55 : x
  2. Step 2: Convert to fraction form
    274,856.17/379,294.90 = 154,002.55/x
  3. Step 3: Cross multiply
    274,856.17x = 379,294.90 × 154,002.55
  4. Step 4: Simplify right side
    274,856.17x = 58,412,381,802.00
  5. Step 5: Solve for x
    x = 58,412,381,802.00/274,856.17
  6. Step 6: Final answer
    x = 212,519.81

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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.