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Finding the Fourth Proportional to 366,810.40, 550,215.60 and 207,378.10

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Solution

The fourth proportional to 366,810.40, 550,215.60 and 207,378.10 is: 311,067.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,810.40 : 550,215.60 = 207,378.10 : x
  2. Step 2: Convert to fraction form
    366,810.40/550,215.60 = 207,378.10/x
  3. Step 3: Cross multiply
    366,810.40x = 550,215.60 × 207,378.10
  4. Step 4: Simplify right side
    366,810.40x = 114,102,665,718.36
  5. Step 5: Solve for x
    x = 114,102,665,718.36/366,810.40
  6. Step 6: Final answer
    x = 311,067.15

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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.