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Finding the Fourth Proportional to 231,316.80, 323,428.80 and 231,316.80

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Solution

The fourth proportional to 231,316.80, 323,428.80 and 231,316.80 is: 323,428.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,316.80 : 323,428.80 = 231,316.80 : x
  2. Step 2: Convert to fraction form
    231,316.80/323,428.80 = 231,316.80/x
  3. Step 3: Cross multiply
    231,316.80x = 323,428.80 × 231,316.80
  4. Step 4: Simplify right side
    231,316.80x = 74,814,515,043.84
  5. Step 5: Solve for x
    x = 74,814,515,043.84/231,316.80
  6. Step 6: Final answer
    x = 323,428.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.