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Finding the Fourth Proportional to 199,464.72, 299,191.60 and 66,347.52

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Solution

The fourth proportional to 199,464.72, 299,191.60 and 66,347.52 is: 99,519.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,464.72 : 299,191.60 = 66,347.52 : x
  2. Step 2: Convert to fraction form
    199,464.72/299,191.60 = 66,347.52/x
  3. Step 3: Cross multiply
    199,464.72x = 299,191.60 × 66,347.52
  4. Step 4: Simplify right side
    199,464.72x = 19,850,620,664.83
  5. Step 5: Solve for x
    x = 19,850,620,664.83/199,464.72
  6. Step 6: Final answer
    x = 99,519.46

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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.