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Finding the Fourth Proportional to 366,989.20, 550,483.80 and 100,749.30

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Solution

The fourth proportional to 366,989.20, 550,483.80 and 100,749.30 is: 151,123.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,989.20 : 550,483.80 = 100,749.30 : x
  2. Step 2: Convert to fraction form
    366,989.20/550,483.80 = 100,749.30/x
  3. Step 3: Cross multiply
    366,989.20x = 550,483.80 × 100,749.30
  4. Step 4: Simplify right side
    366,989.20x = 55,460,857,511.34
  5. Step 5: Solve for x
    x = 55,460,857,511.34/366,989.20
  6. Step 6: Final answer
    x = 151,123.95

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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.