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Finding the Fourth Proportional to 255,900.97, 383,900.65 and 98,117.12

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Solution

The fourth proportional to 255,900.97, 383,900.65 and 98,117.12 is: 147,194.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,900.97 : 383,900.65 = 98,117.12 : x
  2. Step 2: Convert to fraction form
    255,900.97/383,900.65 = 98,117.12/x
  3. Step 3: Cross multiply
    255,900.97x = 383,900.65 × 98,117.12
  4. Step 4: Simplify right side
    255,900.97x = 37,667,224,224.62
  5. Step 5: Solve for x
    x = 37,667,224,224.62/255,900.97
  6. Step 6: Final answer
    x = 147,194.54

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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.