Home / 255,138.09-382,793.63-112,963.78

Finding the Fourth Proportional to 255,138.09, 382,793.63 and 112,963.78

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Solution

The fourth proportional to 255,138.09, 382,793.63 and 112,963.78 is: 169,483.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,138.09 : 382,793.63 = 112,963.78 : x
  2. Step 2: Convert to fraction form
    255,138.09/382,793.63 = 112,963.78/x
  3. Step 3: Cross multiply
    255,138.09x = 382,793.63 × 112,963.78
  4. Step 4: Simplify right side
    255,138.09x = 43,241,815,318.39
  5. Step 5: Solve for x
    x = 43,241,815,318.39/255,138.09
  6. Step 6: Final answer
    x = 169,483.97

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1.5x scale

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.