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Finding the Fourth Proportional to 307,649.06, 424,555.74 and 169,828.04

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Solution

The fourth proportional to 307,649.06, 424,555.74 and 169,828.04 is: 234,362.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,649.06 : 424,555.74 = 169,828.04 : x
  2. Step 2: Convert to fraction form
    307,649.06/424,555.74 = 169,828.04/x
  3. Step 3: Cross multiply
    307,649.06x = 424,555.74 × 169,828.04
  4. Step 4: Simplify right side
    307,649.06x = 72,101,467,072.17
  5. Step 5: Solve for x
    x = 72,101,467,072.17/307,649.06
  6. Step 6: Final answer
    x = 234,362.71

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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.