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Finding the Fourth Proportional to 275,572.17, 380,286.36 and 154,710.45

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Solution

The fourth proportional to 275,572.17, 380,286.36 and 154,710.45 is: 213,498.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,572.17 : 380,286.36 = 154,710.45 : x
  2. Step 2: Convert to fraction form
    275,572.17/380,286.36 = 154,710.45/x
  3. Step 3: Cross multiply
    275,572.17x = 380,286.36 × 154,710.45
  4. Step 4: Simplify right side
    275,572.17x = 58,834,273,884.46
  5. Step 5: Solve for x
    x = 58,834,273,884.46/275,572.17
  6. Step 6: Final answer
    x = 213,498.61

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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.