Home / 206,215.28-309,437.72-111,443.60

Finding the Fourth Proportional to 206,215.28, 309,437.72 and 111,443.60

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Solution

The fourth proportional to 206,215.28, 309,437.72 and 111,443.60 is: 167,227.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,215.28 : 309,437.72 = 111,443.60 : x
  2. Step 2: Convert to fraction form
    206,215.28/309,437.72 = 111,443.60/x
  3. Step 3: Cross multiply
    206,215.28x = 309,437.72 × 111,443.60
  4. Step 4: Simplify right side
    206,215.28x = 34,484,853,492.59
  5. Step 5: Solve for x
    x = 34,484,853,492.59/206,215.28
  6. Step 6: Final answer
    x = 167,227.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.