Home / 217,015.62-299,501.19-120,228.72

Finding the Fourth Proportional to 217,015.62, 299,501.19 and 120,228.72

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Solution

The fourth proportional to 217,015.62, 299,501.19 and 120,228.72 is: 165,926.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,015.62 : 299,501.19 = 120,228.72 : x
  2. Step 2: Convert to fraction form
    217,015.62/299,501.19 = 120,228.72/x
  3. Step 3: Cross multiply
    217,015.62x = 299,501.19 × 120,228.72
  4. Step 4: Simplify right side
    217,015.62x = 36,008,644,712.18
  5. Step 5: Solve for x
    x = 36,008,644,712.18/217,015.62
  6. Step 6: Final answer
    x = 165,926.51

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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.