Home / 376,454.28-519,358.76-215,222.72

Finding the Fourth Proportional to 376,454.28, 519,358.76 and 215,222.72

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Solution

The fourth proportional to 376,454.28, 519,358.76 and 215,222.72 is: 296,922.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,454.28 : 519,358.76 = 215,222.72 : x
  2. Step 2: Convert to fraction form
    376,454.28/519,358.76 = 215,222.72/x
  3. Step 3: Cross multiply
    376,454.28x = 519,358.76 × 215,222.72
  4. Step 4: Simplify right side
    376,454.28x = 111,777,804,983.03
  5. Step 5: Solve for x
    x = 111,777,804,983.03/376,454.28
  6. Step 6: Final answer
    x = 296,922.66

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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.