Home / 330,439.26-456,028.74-187,200.48

Finding the Fourth Proportional to 330,439.26, 456,028.74 and 187,200.48

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Solution

The fourth proportional to 330,439.26, 456,028.74 and 187,200.48 is: 258,349.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,439.26 : 456,028.74 = 187,200.48 : x
  2. Step 2: Convert to fraction form
    330,439.26/456,028.74 = 187,200.48/x
  3. Step 3: Cross multiply
    330,439.26x = 456,028.74 × 187,200.48
  4. Step 4: Simplify right side
    330,439.26x = 85,368,800,731.90
  5. Step 5: Solve for x
    x = 85,368,800,731.90/330,439.26
  6. Step 6: Final answer
    x = 258,349.45

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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.