Home / 198,948.29-298,200.69-72,485.01

Finding the Fourth Proportional to 198,948.29, 298,200.69 and 72,485.01

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Solution

The fourth proportional to 198,948.29, 298,200.69 and 72,485.01 is: 108,646.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,948.29 : 298,200.69 = 72,485.01 : x
  2. Step 2: Convert to fraction form
    198,948.29/298,200.69 = 72,485.01/x
  3. Step 3: Cross multiply
    198,948.29x = 298,200.69 × 72,485.01
  4. Step 4: Simplify right side
    198,948.29x = 21,615,079,996.66
  5. Step 5: Solve for x
    x = 21,615,079,996.66/198,948.29
  6. Step 6: Final answer
    x = 108,646.73

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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.