Home / 330,640.38-456,289.00-187,397.35

Finding the Fourth Proportional to 330,640.38, 456,289.00 and 187,397.35

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Solution

The fourth proportional to 330,640.38, 456,289.00 and 187,397.35 is: 258,611.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,640.38 : 456,289.00 = 187,397.35 : x
  2. Step 2: Convert to fraction form
    330,640.38/456,289.00 = 187,397.35/x
  3. Step 3: Cross multiply
    330,640.38x = 456,289.00 × 187,397.35
  4. Step 4: Simplify right side
    330,640.38x = 85,507,347,824.93
  5. Step 5: Solve for x
    x = 85,507,347,824.93/330,640.38
  6. Step 6: Final answer
    x = 258,611.33

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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.