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Finding the Fourth Proportional to 240,630.60, 360,945.90 and 219,635.40

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Solution

The fourth proportional to 240,630.60, 360,945.90 and 219,635.40 is: 329,453.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,630.60 : 360,945.90 = 219,635.40 : x
  2. Step 2: Convert to fraction form
    240,630.60/360,945.90 = 219,635.40/x
  3. Step 3: Cross multiply
    240,630.60x = 360,945.90 × 219,635.40
  4. Step 4: Simplify right side
    240,630.60x = 79,276,497,124.86
  5. Step 5: Solve for x
    x = 79,276,497,124.86/240,630.60
  6. Step 6: Final answer
    x = 329,453.10

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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.