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Finding the Fourth Proportional to 273,871.76, 378,425.92 and 210,754.94

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Solution

The fourth proportional to 273,871.76, 378,425.92 and 210,754.94 is: 291,213.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,871.76 : 378,425.92 = 210,754.94 : x
  2. Step 2: Convert to fraction form
    273,871.76/378,425.92 = 210,754.94/x
  3. Step 3: Cross multiply
    273,871.76x = 378,425.92 × 210,754.94
  4. Step 4: Simplify right side
    273,871.76x = 79,755,132,064.04
  5. Step 5: Solve for x
    x = 79,755,132,064.04/273,871.76
  6. Step 6: Final answer
    x = 291,213.42

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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.