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Finding the Fourth Proportional to 255,951.12, 353,220.24 and 142,771.44

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Solution

The fourth proportional to 255,951.12, 353,220.24 and 142,771.44 is: 197,028.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,951.12 : 353,220.24 = 142,771.44 : x
  2. Step 2: Convert to fraction form
    255,951.12/353,220.24 = 142,771.44/x
  3. Step 3: Cross multiply
    255,951.12x = 353,220.24 × 142,771.44
  4. Step 4: Simplify right side
    255,951.12x = 50,429,762,301.95
  5. Step 5: Solve for x
    x = 50,429,762,301.95/255,951.12
  6. Step 6: Final answer
    x = 197,028.88

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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.