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Finding the Fourth Proportional to 233,113.78, 321,696.54 and 131,139.31

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Solution

The fourth proportional to 233,113.78, 321,696.54 and 131,139.31 is: 180,971.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,113.78 : 321,696.54 = 131,139.31 : x
  2. Step 2: Convert to fraction form
    233,113.78/321,696.54 = 131,139.31/x
  3. Step 3: Cross multiply
    233,113.78x = 321,696.54 × 131,139.31
  4. Step 4: Simplify right side
    233,113.78x = 42,187,062,284.99
  5. Step 5: Solve for x
    x = 42,187,062,284.99/233,113.78
  6. Step 6: Final answer
    x = 180,971.98

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.