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Finding the Fourth Proportional to 274,663.34, 379,004.08 and 153,787.82

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Solution

The fourth proportional to 274,663.34, 379,004.08 and 153,787.82 is: 212,209.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,663.34 : 379,004.08 = 153,787.82 : x
  2. Step 2: Convert to fraction form
    274,663.34/379,004.08 = 153,787.82/x
  3. Step 3: Cross multiply
    274,663.34x = 379,004.08 × 153,787.82
  4. Step 4: Simplify right side
    274,663.34x = 58,286,208,954.82
  5. Step 5: Solve for x
    x = 58,286,208,954.82/274,663.34
  6. Step 6: Final answer
    x = 212,209.65

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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.