Home / 312,916.16-431,821.94-169,675.97

Finding the Fourth Proportional to 312,916.16, 431,821.94 and 169,675.97

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Solution

The fourth proportional to 312,916.16, 431,821.94 and 169,675.97 is: 234,151.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,916.16 : 431,821.94 = 169,675.97 : x
  2. Step 2: Convert to fraction form
    312,916.16/431,821.94 = 169,675.97/x
  3. Step 3: Cross multiply
    312,916.16x = 431,821.94 × 169,675.97
  4. Step 4: Simplify right side
    312,916.16x = 73,269,803,529.29
  5. Step 5: Solve for x
    x = 73,269,803,529.29/312,916.16
  6. Step 6: Final answer
    x = 234,151.55

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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.