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Finding the Fourth Proportional to 366,821.40, 550,232.10 and 207,389.10

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Solution

The fourth proportional to 366,821.40, 550,232.10 and 207,389.10 is: 311,083.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,821.40 : 550,232.10 = 207,389.10 : x
  2. Step 2: Convert to fraction form
    366,821.40/550,232.10 = 207,389.10/x
  3. Step 3: Cross multiply
    366,821.40x = 550,232.10 × 207,389.10
  4. Step 4: Simplify right side
    366,821.40x = 114,112,140,010.11
  5. Step 5: Solve for x
    x = 114,112,140,010.11/366,821.40
  6. Step 6: Final answer
    x = 311,083.65

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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.