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Finding the Fourth Proportional to 352,112.82, 485,281.17 and 256,468.02

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Solution

The fourth proportional to 352,112.82, 485,281.17 and 256,468.02 is: 353,463.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,112.82 : 485,281.17 = 256,468.02 : x
  2. Step 2: Convert to fraction form
    352,112.82/485,281.17 = 256,468.02/x
  3. Step 3: Cross multiply
    352,112.82x = 485,281.17 × 256,468.02
  4. Step 4: Simplify right side
    352,112.82x = 124,459,100,813.18
  5. Step 5: Solve for x
    x = 124,459,100,813.18/352,112.82
  6. Step 6: Final answer
    x = 353,463.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.