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Finding the Fourth Proportional to 255,732.75, 352,911.22 and 142,555.50

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Solution

The fourth proportional to 255,732.75, 352,911.22 and 142,555.50 is: 196,726.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,732.75 : 352,911.22 = 142,555.50 : x
  2. Step 2: Convert to fraction form
    255,732.75/352,911.22 = 142,555.50/x
  3. Step 3: Cross multiply
    255,732.75x = 352,911.22 × 142,555.50
  4. Step 4: Simplify right side
    255,732.75x = 50,309,435,066.32
  5. Step 5: Solve for x
    x = 50,309,435,066.32/255,732.75
  6. Step 6: Final answer
    x = 196,726.60

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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.