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Finding the Fourth Proportional to 439,308.82, 659,064.36 and 186,597.31

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Solution

The fourth proportional to 439,308.82, 659,064.36 and 186,597.31 is: 279,938.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,308.82 : 659,064.36 = 186,597.31 : x
  2. Step 2: Convert to fraction form
    439,308.82/659,064.36 = 186,597.31/x
  3. Step 3: Cross multiply
    439,308.82x = 659,064.36 × 186,597.31
  4. Step 4: Simplify right side
    439,308.82x = 122,979,636,692.87
  5. Step 5: Solve for x
    x = 122,979,636,692.87/439,308.82
  6. Step 6: Final answer
    x = 279,938.92

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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.