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Finding the Fourth Proportional to 366,939.30, 550,408.95 and 240,640.05

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Solution

The fourth proportional to 366,939.30, 550,408.95 and 240,640.05 is: 360,960.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,939.30 : 550,408.95 = 240,640.05 : x
  2. Step 2: Convert to fraction form
    366,939.30/550,408.95 = 240,640.05/x
  3. Step 3: Cross multiply
    366,939.30x = 550,408.95 × 240,640.05
  4. Step 4: Simplify right side
    366,939.30x = 132,450,437,248.45
  5. Step 5: Solve for x
    x = 132,450,437,248.45/366,939.30
  6. Step 6: Final answer
    x = 360,960.08

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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.