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Finding the Fourth Proportional to 225,351, 310,893.30 and 129,806.52

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Solution

The fourth proportional to 225,351, 310,893.30 and 129,806.52 is: 179,080.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,351 : 310,893.30 = 129,806.52 : x
  2. Step 2: Convert to fraction form
    225,351/310,893.30 = 129,806.52/x
  3. Step 3: Cross multiply
    225,351x = 310,893.30 × 129,806.52
  4. Step 4: Simplify right side
    225,351x = 40,355,977,364.32
  5. Step 5: Solve for x
    x = 40,355,977,364.32/225,351
  6. Step 6: Final answer
    x = 179,080.53

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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.