Home / 381,901.32-526,965.21-220,725.09

Finding the Fourth Proportional to 381,901.32, 526,965.21 and 220,725.09

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Solution

The fourth proportional to 381,901.32, 526,965.21 and 220,725.09 is: 304,566.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,901.32 : 526,965.21 = 220,725.09 : x
  2. Step 2: Convert to fraction form
    381,901.32/526,965.21 = 220,725.09/x
  3. Step 3: Cross multiply
    381,901.32x = 526,965.21 × 220,725.09
  4. Step 4: Simplify right side
    381,901.32x = 116,314,443,404.12
  5. Step 5: Solve for x
    x = 116,314,443,404.12/381,901.32
  6. Step 6: Final answer
    x = 304,566.75

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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.