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Finding the Fourth Proportional to 255,488.16, 352,584.54 and 142,310.88

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Solution

The fourth proportional to 255,488.16, 352,584.54 and 142,310.88 is: 196,395.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,488.16 : 352,584.54 = 142,310.88 : x
  2. Step 2: Convert to fraction form
    255,488.16/352,584.54 = 142,310.88/x
  3. Step 3: Cross multiply
    255,488.16x = 352,584.54 × 142,310.88
  4. Step 4: Simplify right side
    255,488.16x = 50,176,616,161.80
  5. Step 5: Solve for x
    x = 50,176,616,161.80/255,488.16
  6. Step 6: Final answer
    x = 196,395.07

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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.