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Finding the Fourth Proportional to 275,475.89, 380,159.55 and 154,614.76

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Solution

The fourth proportional to 275,475.89, 380,159.55 and 154,614.76 is: 213,369.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,475.89 : 380,159.55 = 154,614.76 : x
  2. Step 2: Convert to fraction form
    275,475.89/380,159.55 = 154,614.76/x
  3. Step 3: Cross multiply
    275,475.89x = 380,159.55 × 154,614.76
  4. Step 4: Simplify right side
    275,475.89x = 58,778,276,634.56
  5. Step 5: Solve for x
    x = 58,778,276,634.56/275,475.89
  6. Step 6: Final answer
    x = 213,369.95

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1.5x scale

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.