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Finding the Fourth Proportional to 274,324.59, 378,550.13 and 153,445.19

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Solution

The fourth proportional to 274,324.59, 378,550.13 and 153,445.19 is: 211,744.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,324.59 : 378,550.13 = 153,445.19 : x
  2. Step 2: Convert to fraction form
    274,324.59/378,550.13 = 153,445.19/x
  3. Step 3: Cross multiply
    274,324.59x = 378,550.13 × 153,445.19
  4. Step 4: Simplify right side
    274,324.59x = 58,086,693,962.40
  5. Step 5: Solve for x
    x = 58,086,693,962.40/274,324.59
  6. Step 6: Final answer
    x = 211,744.39

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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.