Home / 215,971.04-298,037.13-120,479.33

Finding the Fourth Proportional to 215,971.04, 298,037.13 and 120,479.33

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Solution

The fourth proportional to 215,971.04, 298,037.13 and 120,479.33 is: 166,259.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,971.04 : 298,037.13 = 120,479.33 : x
  2. Step 2: Convert to fraction form
    215,971.04/298,037.13 = 120,479.33/x
  3. Step 3: Cross multiply
    215,971.04x = 298,037.13 × 120,479.33
  4. Step 4: Simplify right side
    215,971.04x = 35,907,313,737.52
  5. Step 5: Solve for x
    x = 35,907,313,737.52/215,971.04
  6. Step 6: Final answer
    x = 166,259.85

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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.