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Finding the Fourth Proportional to 351,614.16, 485,229.88 and 190,469.21

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Solution

The fourth proportional to 351,614.16, 485,229.88 and 190,469.21 is: 262,848.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,614.16 : 485,229.88 = 190,469.21 : x
  2. Step 2: Convert to fraction form
    351,614.16/485,229.88 = 190,469.21/x
  3. Step 3: Cross multiply
    351,614.16x = 485,229.88 × 190,469.21
  4. Step 4: Simplify right side
    351,614.16x = 92,421,350,222.75
  5. Step 5: Solve for x
    x = 92,421,350,222.75/351,614.16
  6. Step 6: Final answer
    x = 262,848.77

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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.