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Finding the Fourth Proportional to 352,348.60, 486,237.38 and 197,300.20

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Solution

The fourth proportional to 352,348.60, 486,237.38 and 197,300.20 is: 272,272.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,348.60 : 486,237.38 = 197,300.20 : x
  2. Step 2: Convert to fraction form
    352,348.60/486,237.38 = 197,300.20/x
  3. Step 3: Cross multiply
    352,348.60x = 486,237.38 × 197,300.20
  4. Step 4: Simplify right side
    352,348.60x = 95,934,732,321.48
  5. Step 5: Solve for x
    x = 95,934,732,321.48/352,348.60
  6. Step 6: Final answer
    x = 272,272.21

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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.