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Finding the Fourth Proportional to 352,711.97, 486,410.96 and 272,011.67

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Solution

The fourth proportional to 352,711.97, 486,410.96 and 272,011.67 is: 375,120.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,711.97 : 486,410.96 = 272,011.67 : x
  2. Step 2: Convert to fraction form
    352,711.97/486,410.96 = 272,011.67/x
  3. Step 3: Cross multiply
    352,711.97x = 486,410.96 × 272,011.67
  4. Step 4: Simplify right side
    352,711.97x = 132,309,453,743.79
  5. Step 5: Solve for x
    x = 132,309,453,743.79/352,711.97
  6. Step 6: Final answer
    x = 375,120.40

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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.