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Finding the Fourth Proportional to 538,760, 808,144.05 and 239,160.04

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Solution

The fourth proportional to 538,760, 808,144.05 and 239,160.04 is: 358,741.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,760 : 808,144.05 = 239,160.04 : x
  2. Step 2: Convert to fraction form
    538,760/808,144.05 = 239,160.04/x
  3. Step 3: Cross multiply
    538,760x = 808,144.05 × 239,160.04
  4. Step 4: Simplify right side
    538,760x = 193,275,759,283.04
  5. Step 5: Solve for x
    x = 193,275,759,283.04/538,760
  6. Step 6: Final answer
    x = 358,741.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.