Home / 245,901.20-368,333.40-219,635.60

Finding the Fourth Proportional to 245,901.20, 368,333.40 and 219,635.60

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Solution

The fourth proportional to 245,901.20, 368,333.40 and 219,635.60 is: 328,990.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,901.20 : 368,333.40 = 219,635.60 : x
  2. Step 2: Convert to fraction form
    245,901.20/368,333.40 = 219,635.60/x
  3. Step 3: Cross multiply
    245,901.20x = 368,333.40 × 219,635.60
  4. Step 4: Simplify right side
    245,901.20x = 80,899,127,309.04
  5. Step 5: Solve for x
    x = 80,899,127,309.04/245,901.20
  6. Step 6: Final answer
    x = 328,990.37

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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.