Home / 217,742.52-300,480.23-122,249.18

Finding the Fourth Proportional to 217,742.52, 300,480.23 and 122,249.18

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Solution

The fourth proportional to 217,742.52, 300,480.23 and 122,249.18 is: 168,701.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,742.52 : 300,480.23 = 122,249.18 : x
  2. Step 2: Convert to fraction form
    217,742.52/300,480.23 = 122,249.18/x
  3. Step 3: Cross multiply
    217,742.52x = 300,480.23 × 122,249.18
  4. Step 4: Simplify right side
    217,742.52x = 36,733,461,723.71
  5. Step 5: Solve for x
    x = 36,733,461,723.71/217,742.52
  6. Step 6: Final answer
    x = 168,701.37

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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.