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Finding the Fourth Proportional to 366,867.20, 550,300.80 and 266,483.90

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Solution

The fourth proportional to 366,867.20, 550,300.80 and 266,483.90 is: 399,725.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,867.20 : 550,300.80 = 266,483.90 : x
  2. Step 2: Convert to fraction form
    366,867.20/550,300.80 = 266,483.90/x
  3. Step 3: Cross multiply
    366,867.20x = 550,300.80 × 266,483.90
  4. Step 4: Simplify right side
    366,867.20x = 146,646,303,357.12
  5. Step 5: Solve for x
    x = 146,646,303,357.12/366,867.20
  6. Step 6: Final answer
    x = 399,725.85

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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.