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Finding the Fourth Proportional to 351,614.90, 485,229.76 and 190,469.46

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Solution

The fourth proportional to 351,614.90, 485,229.76 and 190,469.46 is: 262,848.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,614.90 : 485,229.76 = 190,469.46 : x
  2. Step 2: Convert to fraction form
    351,614.90/485,229.76 = 190,469.46/x
  3. Step 3: Cross multiply
    351,614.90x = 485,229.76 × 190,469.46
  4. Step 4: Simplify right side
    351,614.90x = 92,421,450,363.13
  5. Step 5: Solve for x
    x = 92,421,450,363.13/351,614.90
  6. Step 6: Final answer
    x = 262,848.50

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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.