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Finding the Fourth Proportional to 366,906.98, 550,387.80 and 130,218.90

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Solution

The fourth proportional to 366,906.98, 550,387.80 and 130,218.90 is: 195,338.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,906.98 : 550,387.80 = 130,218.90 : x
  2. Step 2: Convert to fraction form
    366,906.98/550,387.80 = 130,218.90/x
  3. Step 3: Cross multiply
    366,906.98x = 550,387.80 × 130,218.90
  4. Step 4: Simplify right side
    366,906.98x = 71,670,893,889.42
  5. Step 5: Solve for x
    x = 71,670,893,889.42/366,906.98
  6. Step 6: Final answer
    x = 195,338.05

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1.5x scale

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.