Home / 274,616.88-378,938.04-153,748.68

Finding the Fourth Proportional to 274,616.88, 378,938.04 and 153,748.68

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Solution

The fourth proportional to 274,616.88, 378,938.04 and 153,748.68 is: 212,154.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,616.88 : 378,938.04 = 153,748.68 : x
  2. Step 2: Convert to fraction form
    274,616.88/378,938.04 = 153,748.68/x
  3. Step 3: Cross multiply
    274,616.88x = 378,938.04 × 153,748.68
  4. Step 4: Simplify right side
    274,616.88x = 58,261,223,451.79
  5. Step 5: Solve for x
    x = 58,261,223,451.79/274,616.88
  6. Step 6: Final answer
    x = 212,154.56

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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.