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Finding the Fourth Proportional to 255,883.38, 383,825.06 and 89,671.38

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Solution

The fourth proportional to 255,883.38, 383,825.06 and 89,671.38 is: 134,507.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,883.38 : 383,825.06 = 89,671.38 : x
  2. Step 2: Convert to fraction form
    255,883.38/383,825.06 = 89,671.38/x
  3. Step 3: Cross multiply
    255,883.38x = 383,825.06 × 89,671.38
  4. Step 4: Simplify right side
    255,883.38x = 34,418,122,808.78
  5. Step 5: Solve for x
    x = 34,418,122,808.78/255,883.38
  6. Step 6: Final answer
    x = 134,507.07

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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.