Home / 330,316.12-494,679.10-187,812.78

Finding the Fourth Proportional to 330,316.12, 494,679.10 and 187,812.78

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Solution

The fourth proportional to 330,316.12, 494,679.10 and 187,812.78 is: 281,267.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,316.12 : 494,679.10 = 187,812.78 : x
  2. Step 2: Convert to fraction form
    330,316.12/494,679.10 = 187,812.78/x
  3. Step 3: Cross multiply
    330,316.12x = 494,679.10 × 187,812.78
  4. Step 4: Simplify right side
    330,316.12x = 92,907,056,978.90
  5. Step 5: Solve for x
    x = 92,907,056,978.90/330,316.12
  6. Step 6: Final answer
    x = 281,267.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.