Home / 276,450.77-381,514.34-155,599.88

Finding the Fourth Proportional to 276,450.77, 381,514.34 and 155,599.88

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Solution

The fourth proportional to 276,450.77, 381,514.34 and 155,599.88 is: 214,734.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,450.77 : 381,514.34 = 155,599.88 : x
  2. Step 2: Convert to fraction form
    276,450.77/381,514.34 = 155,599.88/x
  3. Step 3: Cross multiply
    276,450.77x = 381,514.34 × 155,599.88
  4. Step 4: Simplify right side
    276,450.77x = 59,363,584,744.28
  5. Step 5: Solve for x
    x = 59,363,584,744.28/276,450.77
  6. Step 6: Final answer
    x = 214,734.75

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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.