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Finding the Fourth Proportional to 234,639, 322,602.80 and 208,900.44

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Solution

The fourth proportional to 234,639, 322,602.80 and 208,900.44 is: 287,215.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,639 : 322,602.80 = 208,900.44 : x
  2. Step 2: Convert to fraction form
    234,639/322,602.80 = 208,900.44/x
  3. Step 3: Cross multiply
    234,639x = 322,602.80 × 208,900.44
  4. Step 4: Simplify right side
    234,639x = 67,391,866,865.23
  5. Step 5: Solve for x
    x = 67,391,866,865.23/234,639
  6. Step 6: Final answer
    x = 287,215.11

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.