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Finding the Fourth Proportional to 256,607.78, 384,815.88 and 88,080.26

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Solution

The fourth proportional to 256,607.78, 384,815.88 and 88,080.26 is: 132,087.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,607.78 : 384,815.88 = 88,080.26 : x
  2. Step 2: Convert to fraction form
    256,607.78/384,815.88 = 88,080.26/x
  3. Step 3: Cross multiply
    256,607.78x = 384,815.88 × 88,080.26
  4. Step 4: Simplify right side
    256,607.78x = 33,894,682,762.53
  5. Step 5: Solve for x
    x = 33,894,682,762.53/256,607.78
  6. Step 6: Final answer
    x = 132,087.51

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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.