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Finding the Fourth Proportional to 339,964.59, 469,151.60 and 189,061.59

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Solution

The fourth proportional to 339,964.59, 469,151.60 and 189,061.59 is: 260,905.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,964.59 : 469,151.60 = 189,061.59 : x
  2. Step 2: Convert to fraction form
    339,964.59/469,151.60 = 189,061.59/x
  3. Step 3: Cross multiply
    339,964.59x = 469,151.60 × 189,061.59
  4. Step 4: Simplify right side
    339,964.59x = 88,698,548,261.05
  5. Step 5: Solve for x
    x = 88,698,548,261.05/339,964.59
  6. Step 6: Final answer
    x = 260,905.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.