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Finding the Fourth Proportional to 255,626.67, 352,772.01 and 142,456.71

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Solution

The fourth proportional to 255,626.67, 352,772.01 and 142,456.71 is: 196,594.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,626.67 : 352,772.01 = 142,456.71 : x
  2. Step 2: Convert to fraction form
    255,626.67/352,772.01 = 142,456.71/x
  3. Step 3: Cross multiply
    255,626.67x = 352,772.01 × 142,456.71
  4. Step 4: Simplify right side
    255,626.67x = 50,254,739,924.69
  5. Step 5: Solve for x
    x = 50,254,739,924.69/255,626.67
  6. Step 6: Final answer
    x = 196,594.28

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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.