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Finding the Fourth Proportional to 358,976.76, 495,378.80 and 195,637.47

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Solution

The fourth proportional to 358,976.76, 495,378.80 and 195,637.47 is: 269,974.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,976.76 : 495,378.80 = 195,637.47 : x
  2. Step 2: Convert to fraction form
    358,976.76/495,378.80 = 195,637.47/x
  3. Step 3: Cross multiply
    358,976.76x = 495,378.80 × 195,637.47
  4. Step 4: Simplify right side
    358,976.76x = 96,914,654,786.33
  5. Step 5: Solve for x
    x = 96,914,654,786.33/358,976.76
  6. Step 6: Final answer
    x = 269,974.73

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1.5x scale

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.