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Finding the Fourth Proportional to 289,815, 399,869.01 and 167,277.39

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Solution

The fourth proportional to 289,815, 399,869.01 and 167,277.39 is: 230,799.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,815 : 399,869.01 = 167,277.39 : x
  2. Step 2: Convert to fraction form
    289,815/399,869.01 = 167,277.39/x
  3. Step 3: Cross multiply
    289,815x = 399,869.01 × 167,277.39
  4. Step 4: Simplify right side
    289,815x = 66,889,044,334.68
  5. Step 5: Solve for x
    x = 66,889,044,334.68/289,815
  6. Step 6: Final answer
    x = 230,799.11

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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.