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Finding the Fourth Proportional to 358,874.48, 495,242.18 and 195,537.78

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Solution

The fourth proportional to 358,874.48, 495,242.18 and 195,537.78 is: 269,839.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,874.48 : 495,242.18 = 195,537.78 : x
  2. Step 2: Convert to fraction form
    358,874.48/495,242.18 = 195,537.78/x
  3. Step 3: Cross multiply
    358,874.48x = 495,242.18 × 195,537.78
  4. Step 4: Simplify right side
    358,874.48x = 96,838,556,439.56
  5. Step 5: Solve for x
    x = 96,838,556,439.56/358,874.48
  6. Step 6: Final answer
    x = 269,839.63

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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.