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Finding the Fourth Proportional to 352,245.74, 486,123.20 and 199,283.89

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Solution

The fourth proportional to 352,245.74, 486,123.20 and 199,283.89 is: 275,025.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,245.74 : 486,123.20 = 199,283.89 : x
  2. Step 2: Convert to fraction form
    352,245.74/486,123.20 = 199,283.89/x
  3. Step 3: Cross multiply
    352,245.74x = 486,123.20 × 199,283.89
  4. Step 4: Simplify right side
    352,245.74x = 96,876,521,009.91
  5. Step 5: Solve for x
    x = 96,876,521,009.91/352,245.74
  6. Step 6: Final answer
    x = 275,025.39

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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.