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Finding the Fourth Proportional to 245,604.52, 368,419.74 and 79,405.48

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Solution

The fourth proportional to 245,604.52, 368,419.74 and 79,405.48 is: 119,112.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,604.52 : 368,419.74 = 79,405.48 : x
  2. Step 2: Convert to fraction form
    245,604.52/368,419.74 = 79,405.48/x
  3. Step 3: Cross multiply
    245,604.52x = 368,419.74 × 79,405.48
  4. Step 4: Simplify right side
    245,604.52x = 29,254,546,296.18
  5. Step 5: Solve for x
    x = 29,254,546,296.18/245,604.52
  6. Step 6: Final answer
    x = 119,112.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.