Home / 217,419.09-300,041.33-131,366.04

Finding the Fourth Proportional to 217,419.09, 300,041.33 and 131,366.04

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Solution

The fourth proportional to 217,419.09, 300,041.33 and 131,366.04 is: 181,286.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,419.09 : 300,041.33 = 131,366.04 : x
  2. Step 2: Convert to fraction form
    217,419.09/300,041.33 = 131,366.04/x
  3. Step 3: Cross multiply
    217,419.09x = 300,041.33 × 131,366.04
  4. Step 4: Simplify right side
    217,419.09x = 39,415,240,701.60
  5. Step 5: Solve for x
    x = 39,415,240,701.60/217,419.09
  6. Step 6: Final answer
    x = 181,286.94

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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.