Home / 218,716.08-301,828.20-123,222.72

Finding the Fourth Proportional to 218,716.08, 301,828.20 and 123,222.72

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Solution

The fourth proportional to 218,716.08, 301,828.20 and 123,222.72 is: 170,047.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,716.08 : 301,828.20 = 123,222.72 : x
  2. Step 2: Convert to fraction form
    218,716.08/301,828.20 = 123,222.72/x
  3. Step 3: Cross multiply
    218,716.08x = 301,828.20 × 123,222.72
  4. Step 4: Simplify right side
    218,716.08x = 37,192,091,776.70
  5. Step 5: Solve for x
    x = 37,192,091,776.70/218,716.08
  6. Step 6: Final answer
    x = 170,047.36

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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.