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Finding the Fourth Proportional to 366,758.70, 550,138.05 and 320,102.70

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Solution

The fourth proportional to 366,758.70, 550,138.05 and 320,102.70 is: 480,154.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,758.70 : 550,138.05 = 320,102.70 : x
  2. Step 2: Convert to fraction form
    366,758.70/550,138.05 = 320,102.70/x
  3. Step 3: Cross multiply
    366,758.70x = 550,138.05 × 320,102.70
  4. Step 4: Simplify right side
    366,758.70x = 176,100,675,177.74
  5. Step 5: Solve for x
    x = 176,100,675,177.74/366,758.70
  6. Step 6: Final answer
    x = 480,154.05

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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.