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Finding the Fourth Proportional to 358,743.01, 495,055.11 and 195,395.86

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Solution

The fourth proportional to 358,743.01, 495,055.11 and 195,395.86 is: 269,640.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,743.01 : 495,055.11 = 195,395.86 : x
  2. Step 2: Convert to fraction form
    358,743.01/495,055.11 = 195,395.86/x
  3. Step 3: Cross multiply
    358,743.01x = 495,055.11 × 195,395.86
  4. Step 4: Simplify right side
    358,743.01x = 96,731,718,965.84
  5. Step 5: Solve for x
    x = 96,731,718,965.84/358,743.01
  6. Step 6: Final answer
    x = 269,640.71

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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.