Home / 312,869.05-431,760.23-169,629.15

Finding the Fourth Proportional to 312,869.05, 431,760.23 and 169,629.15

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Solution

The fourth proportional to 312,869.05, 431,760.23 and 169,629.15 is: 234,088.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,869.05 : 431,760.23 = 169,629.15 : x
  2. Step 2: Convert to fraction form
    312,869.05/431,760.23 = 169,629.15/x
  3. Step 3: Cross multiply
    312,869.05x = 431,760.23 × 169,629.15
  4. Step 4: Simplify right side
    312,869.05x = 73,239,122,225.77
  5. Step 5: Solve for x
    x = 73,239,122,225.77/312,869.05
  6. Step 6: Final answer
    x = 234,088.74

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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.