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Finding the Fourth Proportional to 255,694.40, 383,887.20 and 162,382.40

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Solution

The fourth proportional to 255,694.40, 383,887.20 and 162,382.40 is: 243,793.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,694.40 : 383,887.20 = 162,382.40 : x
  2. Step 2: Convert to fraction form
    255,694.40/383,887.20 = 162,382.40/x
  3. Step 3: Cross multiply
    255,694.40x = 383,887.20 × 162,382.40
  4. Step 4: Simplify right side
    255,694.40x = 62,336,524,865.28
  5. Step 5: Solve for x
    x = 62,336,524,865.28/255,694.40
  6. Step 6: Final answer
    x = 243,793.08

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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.