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Finding the Fourth Proportional to 260,747.87, 389,166.95 and 243,722.52

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Solution

The fourth proportional to 260,747.87, 389,166.95 and 243,722.52 is: 363,756.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,747.87 : 389,166.95 = 243,722.52 : x
  2. Step 2: Convert to fraction form
    260,747.87/389,166.95 = 243,722.52/x
  3. Step 3: Cross multiply
    260,747.87x = 389,166.95 × 243,722.52
  4. Step 4: Simplify right side
    260,747.87x = 94,848,750,364.02
  5. Step 5: Solve for x
    x = 94,848,750,364.02/260,747.87
  6. Step 6: Final answer
    x = 363,756.58

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.