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Finding the Fourth Proportional to 255,771.88, 352,853.22 and 243,913.48

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Solution

The fourth proportional to 255,771.88, 352,853.22 and 243,913.48 is: 336,493.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,771.88 : 352,853.22 = 243,913.48 : x
  2. Step 2: Convert to fraction form
    255,771.88/352,853.22 = 243,913.48/x
  3. Step 3: Cross multiply
    255,771.88x = 352,853.22 × 243,913.48
  4. Step 4: Simplify right side
    255,771.88x = 86,065,656,819.41
  5. Step 5: Solve for x
    x = 86,065,656,819.41/255,771.88
  6. Step 6: Final answer
    x = 336,493.82

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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.