Home / 330,487.20-456,071.13-187,274.61

Finding the Fourth Proportional to 330,487.20, 456,071.13 and 187,274.61

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Solution

The fourth proportional to 330,487.20, 456,071.13 and 187,274.61 is: 258,438.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,487.20 : 456,071.13 = 187,274.61 : x
  2. Step 2: Convert to fraction form
    330,487.20/456,071.13 = 187,274.61/x
  3. Step 3: Cross multiply
    330,487.20x = 456,071.13 × 187,274.61
  4. Step 4: Simplify right side
    330,487.20x = 85,410,543,003.01
  5. Step 5: Solve for x
    x = 85,410,543,003.01/330,487.20
  6. Step 6: Final answer
    x = 258,438.28

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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.