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Finding the Fourth Proportional to 274,337.60, 378,376.53 and 236,159.87

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Solution

The fourth proportional to 274,337.60, 378,376.53 and 236,159.87 is: 325,720.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,337.60 : 378,376.53 = 236,159.87 : x
  2. Step 2: Convert to fraction form
    274,337.60/378,376.53 = 236,159.87/x
  3. Step 3: Cross multiply
    274,337.60x = 378,376.53 × 236,159.87
  4. Step 4: Simplify right side
    274,337.60x = 89,357,352,135.85
  5. Step 5: Solve for x
    x = 89,357,352,135.85/274,337.60
  6. Step 6: Final answer
    x = 325,720.40

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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.