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Finding the Fourth Proportional to 217,493.91, 300,124.44 and 131,435.46

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Solution

The fourth proportional to 217,493.91, 300,124.44 and 131,435.46 is: 181,370.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,493.91 : 300,124.44 = 131,435.46 : x
  2. Step 2: Convert to fraction form
    217,493.91/300,124.44 = 131,435.46/x
  3. Step 3: Cross multiply
    217,493.91x = 300,124.44 × 131,435.46
  4. Step 4: Simplify right side
    217,493.91x = 39,446,993,828.64
  5. Step 5: Solve for x
    x = 39,446,993,828.64/217,493.91
  6. Step 6: Final answer
    x = 181,370.57

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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.