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Finding the Fourth Proportional to 247,979.52, 342,197.28 and 134,801.28

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Solution

The fourth proportional to 247,979.52, 342,197.28 and 134,801.28 is: 186,017.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,979.52 : 342,197.28 = 134,801.28 : x
  2. Step 2: Convert to fraction form
    247,979.52/342,197.28 = 134,801.28/x
  3. Step 3: Cross multiply
    247,979.52x = 342,197.28 × 134,801.28
  4. Step 4: Simplify right side
    247,979.52x = 46,128,631,356.52
  5. Step 5: Solve for x
    x = 46,128,631,356.52/247,979.52
  6. Step 6: Final answer
    x = 186,017.91

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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.