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Finding the Fourth Proportional to 255,425.44, 352,514.79 and 140,715.84

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Solution

The fourth proportional to 255,425.44, 352,514.79 and 140,715.84 is: 194,203.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,425.44 : 352,514.79 = 140,715.84 : x
  2. Step 2: Convert to fraction form
    255,425.44/352,514.79 = 140,715.84/x
  3. Step 3: Cross multiply
    255,425.44x = 352,514.79 × 140,715.84
  4. Step 4: Simplify right side
    255,425.44x = 49,604,414,083.69
  5. Step 5: Solve for x
    x = 49,604,414,083.69/255,425.44
  6. Step 6: Final answer
    x = 194,203.11

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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.