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Finding the Fourth Proportional to 276,173.84, 381,132.82 and 153,666.90

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Solution

The fourth proportional to 276,173.84, 381,132.82 and 153,666.90 is: 212,067.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,173.84 : 381,132.82 = 153,666.90 : x
  2. Step 2: Convert to fraction form
    276,173.84/381,132.82 = 153,666.90/x
  3. Step 3: Cross multiply
    276,173.84x = 381,132.82 × 153,666.90
  4. Step 4: Simplify right side
    276,173.84x = 58,567,498,937.66
  5. Step 5: Solve for x
    x = 58,567,498,937.66/276,173.84
  6. Step 6: Final answer
    x = 212,067.51

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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.