Home / 220,919.34-304,868.70-120,317.34

Finding the Fourth Proportional to 220,919.34, 304,868.70 and 120,317.34

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Solution

The fourth proportional to 220,919.34, 304,868.70 and 120,317.34 is: 166,037.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,919.34 : 304,868.70 = 120,317.34 : x
  2. Step 2: Convert to fraction form
    220,919.34/304,868.70 = 120,317.34/x
  3. Step 3: Cross multiply
    220,919.34x = 304,868.70 × 120,317.34
  4. Step 4: Simplify right side
    220,919.34x = 36,680,992,176.52
  5. Step 5: Solve for x
    x = 36,680,992,176.52/220,919.34
  6. Step 6: Final answer
    x = 166,037.94

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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.