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Finding the Fourth Proportional to 352,060.65, 485,842.68 and 190,915.20

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Solution

The fourth proportional to 352,060.65, 485,842.68 and 190,915.20 is: 263,462.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,060.65 : 485,842.68 = 190,915.20 : x
  2. Step 2: Convert to fraction form
    352,060.65/485,842.68 = 190,915.20/x
  3. Step 3: Cross multiply
    352,060.65x = 485,842.68 × 190,915.20
  4. Step 4: Simplify right side
    352,060.65x = 92,754,752,420.74
  5. Step 5: Solve for x
    x = 92,754,752,420.74/352,060.65
  6. Step 6: Final answer
    x = 263,462.42

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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.