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Finding the Fourth Proportional to 245,952.70, 339,415.85 and 138,524.52

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Solution

The fourth proportional to 245,952.70, 339,415.85 and 138,524.52 is: 191,164.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,952.70 : 339,415.85 = 138,524.52 : x
  2. Step 2: Convert to fraction form
    245,952.70/339,415.85 = 138,524.52/x
  3. Step 3: Cross multiply
    245,952.70x = 339,415.85 × 138,524.52
  4. Step 4: Simplify right side
    245,952.70x = 47,017,419,320.76
  5. Step 5: Solve for x
    x = 47,017,419,320.76/245,952.70
  6. Step 6: Final answer
    x = 191,164.48

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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.