Home / 206,319.83-309,479.75-136,182.74

Finding the Fourth Proportional to 206,319.83, 309,479.75 and 136,182.74

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Solution

The fourth proportional to 206,319.83, 309,479.75 and 136,182.74 is: 204,274.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,319.83 : 309,479.75 = 136,182.74 : x
  2. Step 2: Convert to fraction form
    206,319.83/309,479.75 = 136,182.74/x
  3. Step 3: Cross multiply
    206,319.83x = 309,479.75 × 136,182.74
  4. Step 4: Simplify right side
    206,319.83x = 42,145,801,443.67
  5. Step 5: Solve for x
    x = 42,145,801,443.67/206,319.83
  6. Step 6: Final answer
    x = 204,274.12

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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.