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Finding the Fourth Proportional to 366,974.70, 550,462.05 and 209,510.70

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Solution

The fourth proportional to 366,974.70, 550,462.05 and 209,510.70 is: 314,266.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,974.70 : 550,462.05 = 209,510.70 : x
  2. Step 2: Convert to fraction form
    366,974.70/550,462.05 = 209,510.70/x
  3. Step 3: Cross multiply
    366,974.70x = 550,462.05 × 209,510.70
  4. Step 4: Simplify right side
    366,974.70x = 115,327,689,418.94
  5. Step 5: Solve for x
    x = 115,327,689,418.94/366,974.70
  6. Step 6: Final answer
    x = 314,266.05

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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.