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Finding the Fourth Proportional to 366,903.48, 550,355.22 and 278,329.98

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Solution

The fourth proportional to 366,903.48, 550,355.22 and 278,329.98 is: 417,494.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,903.48 : 550,355.22 = 278,329.98 : x
  2. Step 2: Convert to fraction form
    366,903.48/550,355.22 = 278,329.98/x
  3. Step 3: Cross multiply
    366,903.48x = 550,355.22 × 278,329.98
  4. Step 4: Simplify right side
    366,903.48x = 153,180,357,375.50
  5. Step 5: Solve for x
    x = 153,180,357,375.50/366,903.48
  6. Step 6: Final answer
    x = 417,494.97

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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.