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Finding the Fourth Proportional to 352,217.98, 485,695.38 and 301,398.88

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Solution

The fourth proportional to 352,217.98, 485,695.38 and 301,398.88 is: 415,617.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,217.98 : 485,695.38 = 301,398.88 : x
  2. Step 2: Convert to fraction form
    352,217.98/485,695.38 = 301,398.88/x
  3. Step 3: Cross multiply
    352,217.98x = 485,695.38 × 301,398.88
  4. Step 4: Simplify right side
    352,217.98x = 146,388,043,553.17
  5. Step 5: Solve for x
    x = 146,388,043,553.17/352,217.98
  6. Step 6: Final answer
    x = 415,617.75

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1.5x scale

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.