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Finding the Fourth Proportional to 255,903.55, 383,743.78 and 135,934.22

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Solution

The fourth proportional to 255,903.55, 383,743.78 and 135,934.22 is: 203,842.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,903.55 : 383,743.78 = 135,934.22 : x
  2. Step 2: Convert to fraction form
    255,903.55/383,743.78 = 135,934.22/x
  3. Step 3: Cross multiply
    255,903.55x = 383,743.78 × 135,934.22
  4. Step 4: Simplify right side
    255,903.55x = 52,163,911,414.15
  5. Step 5: Solve for x
    x = 52,163,911,414.15/255,903.55
  6. Step 6: Final answer
    x = 203,842.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.