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Finding the Fourth Proportional to 274,301.87, 378,554.58 and 153,464.04

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Solution

The fourth proportional to 274,301.87, 378,554.58 and 153,464.04 is: 211,790.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,301.87 : 378,554.58 = 153,464.04 : x
  2. Step 2: Convert to fraction form
    274,301.87/378,554.58 = 153,464.04/x
  3. Step 3: Cross multiply
    274,301.87x = 378,554.58 × 153,464.04
  4. Step 4: Simplify right side
    274,301.87x = 58,094,515,207.30
  5. Step 5: Solve for x
    x = 58,094,515,207.30/274,301.87
  6. Step 6: Final answer
    x = 211,790.45

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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.