Home / 217,633.14-300,255.93-137,065.68

Finding the Fourth Proportional to 217,633.14, 300,255.93 and 137,065.68

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Solution

The fourth proportional to 217,633.14, 300,255.93 and 137,065.68 is: 189,101.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,633.14 : 300,255.93 = 137,065.68 : x
  2. Step 2: Convert to fraction form
    217,633.14/300,255.93 = 137,065.68/x
  3. Step 3: Cross multiply
    217,633.14x = 300,255.93 × 137,065.68
  4. Step 4: Simplify right side
    217,633.14x = 41,154,783,219.48
  5. Step 5: Solve for x
    x = 41,154,783,219.48/217,633.14
  6. Step 6: Final answer
    x = 189,101.64

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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.