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Finding the Fourth Proportional to 358,882.20, 537,659.10 and 209,194.20

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Solution

The fourth proportional to 358,882.20, 537,659.10 and 209,194.20 is: 313,404.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,882.20 : 537,659.10 = 209,194.20 : x
  2. Step 2: Convert to fraction form
    358,882.20/537,659.10 = 209,194.20/x
  3. Step 3: Cross multiply
    358,882.20x = 537,659.10 × 209,194.20
  4. Step 4: Simplify right side
    358,882.20x = 112,475,165,297.22
  5. Step 5: Solve for x
    x = 112,475,165,297.22/358,882.20
  6. Step 6: Final answer
    x = 313,404.13

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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.