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Finding the Fourth Proportional to 255,034.20, 382,113.90 and 121,627.20

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Solution

The fourth proportional to 255,034.20, 382,113.90 and 121,627.20 is: 182,232.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,034.20 : 382,113.90 = 121,627.20 : x
  2. Step 2: Convert to fraction form
    255,034.20/382,113.90 = 121,627.20/x
  3. Step 3: Cross multiply
    255,034.20x = 382,113.90 × 121,627.20
  4. Step 4: Simplify right side
    255,034.20x = 46,475,443,738.08
  5. Step 5: Solve for x
    x = 46,475,443,738.08/255,034.20
  6. Step 6: Final answer
    x = 182,232.20

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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.