Home / 198,830.88-298,246.28-72,480.60

Finding the Fourth Proportional to 198,830.88, 298,246.28 and 72,480.60

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Solution

The fourth proportional to 198,830.88, 298,246.28 and 72,480.60 is: 108,720.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,830.88 : 298,246.28 = 72,480.60 : x
  2. Step 2: Convert to fraction form
    198,830.88/298,246.28 = 72,480.60/x
  3. Step 3: Cross multiply
    198,830.88x = 298,246.28 × 72,480.60
  4. Step 4: Simplify right side
    198,830.88x = 21,617,069,322.17
  5. Step 5: Solve for x
    x = 21,617,069,322.17/198,830.88
  6. Step 6: Final answer
    x = 108,720.89

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1.5x scale

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.