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Finding the Fourth Proportional to 219,787.72, 303,286.60 and 124,294.12

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Solution

The fourth proportional to 219,787.72, 303,286.60 and 124,294.12 is: 171,514.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,787.72 : 303,286.60 = 124,294.12 : x
  2. Step 2: Convert to fraction form
    219,787.72/303,286.60 = 124,294.12/x
  3. Step 3: Cross multiply
    219,787.72x = 303,286.60 × 124,294.12
  4. Step 4: Simplify right side
    219,787.72x = 37,696,741,054.79
  5. Step 5: Solve for x
    x = 37,696,741,054.79/219,787.72
  6. Step 6: Final answer
    x = 171,514.32

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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.