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Finding the Fourth Proportional to 358,872.47, 495,239.43 and 195,535.78

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Solution

The fourth proportional to 358,872.47, 495,239.43 and 195,535.78 is: 269,836.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,872.47 : 495,239.43 = 195,535.78 : x
  2. Step 2: Convert to fraction form
    358,872.47/495,239.43 = 195,535.78/x
  3. Step 3: Cross multiply
    358,872.47x = 495,239.43 × 195,535.78
  4. Step 4: Simplify right side
    358,872.47x = 96,837,028,231.81
  5. Step 5: Solve for x
    x = 96,837,028,231.81/358,872.47
  6. Step 6: Final answer
    x = 269,836.88

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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.