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Finding the Fourth Proportional to 256,959.41, 385,464.77 and 88,457.43

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Solution

The fourth proportional to 256,959.41, 385,464.77 and 88,457.43 is: 132,694.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,959.41 : 385,464.77 = 88,457.43 : x
  2. Step 2: Convert to fraction form
    256,959.41/385,464.77 = 88,457.43/x
  3. Step 3: Cross multiply
    256,959.41x = 385,464.77 × 88,457.43
  4. Step 4: Simplify right side
    256,959.41x = 34,097,224,244.66
  5. Step 5: Solve for x
    x = 34,097,224,244.66/256,959.41
  6. Step 6: Final answer
    x = 132,694.98

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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.