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Finding the Fourth Proportional to 342,752.84, 472,993.14 and 189,787.73

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Solution

The fourth proportional to 342,752.84, 472,993.14 and 189,787.73 is: 261,903.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,752.84 : 472,993.14 = 189,787.73 : x
  2. Step 2: Convert to fraction form
    342,752.84/472,993.14 = 189,787.73/x
  3. Step 3: Cross multiply
    342,752.84x = 472,993.14 × 189,787.73
  4. Step 4: Simplify right side
    342,752.84x = 89,768,295,528.66
  5. Step 5: Solve for x
    x = 89,768,295,528.66/342,752.84
  6. Step 6: Final answer
    x = 261,903.87

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1.5x scale

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.