Home / 217,431.42-300,058.41-131,378.46

Finding the Fourth Proportional to 217,431.42, 300,058.41 and 131,378.46

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Solution

The fourth proportional to 217,431.42, 300,058.41 and 131,378.46 is: 181,304.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,431.42 : 300,058.41 = 131,378.46 : x
  2. Step 2: Convert to fraction form
    217,431.42/300,058.41 = 131,378.46/x
  3. Step 3: Cross multiply
    217,431.42x = 300,058.41 × 131,378.46
  4. Step 4: Simplify right side
    217,431.42x = 39,421,211,815.85
  5. Step 5: Solve for x
    x = 39,421,211,815.85/217,431.42
  6. Step 6: Final answer
    x = 181,304.12

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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.