Home / 280,832.28-387,548.52-153,508.38

Finding the Fourth Proportional to 280,832.28, 387,548.52 and 153,508.38

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Solution

The fourth proportional to 280,832.28, 387,548.52 and 153,508.38 is: 211,841.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,832.28 : 387,548.52 = 153,508.38 : x
  2. Step 2: Convert to fraction form
    280,832.28/387,548.52 = 153,508.38/x
  3. Step 3: Cross multiply
    280,832.28x = 387,548.52 × 153,508.38
  4. Step 4: Simplify right side
    280,832.28x = 59,491,945,476.60
  5. Step 5: Solve for x
    x = 59,491,945,476.60/280,832.28
  6. Step 6: Final answer
    x = 211,841.55

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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.