Home / 205,926.24-308,288.40-126,803.04

Finding the Fourth Proportional to 205,926.24, 308,288.40 and 126,803.04

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Solution

The fourth proportional to 205,926.24, 308,288.40 and 126,803.04 is: 189,834.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,926.24 : 308,288.40 = 126,803.04 : x
  2. Step 2: Convert to fraction form
    205,926.24/308,288.40 = 126,803.04/x
  3. Step 3: Cross multiply
    205,926.24x = 308,288.40 × 126,803.04
  4. Step 4: Simplify right side
    205,926.24x = 39,091,906,316.74
  5. Step 5: Solve for x
    x = 39,091,906,316.74/205,926.24
  6. Step 6: Final answer
    x = 189,834.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.