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Finding the Fourth Proportional to 248,432.40, 372,211.20 and 203,817.60

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Solution

The fourth proportional to 248,432.40, 372,211.20 and 203,817.60 is: 305,367.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,432.40 : 372,211.20 = 203,817.60 : x
  2. Step 2: Convert to fraction form
    248,432.40/372,211.20 = 203,817.60/x
  3. Step 3: Cross multiply
    248,432.40x = 372,211.20 × 203,817.60
  4. Step 4: Simplify right side
    248,432.40x = 75,863,193,477.12
  5. Step 5: Solve for x
    x = 75,863,193,477.12/248,432.40
  6. Step 6: Final answer
    x = 305,367.55

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1.5x scale

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.