Home / 204,002.40-306,003.60-128,878.95

Finding the Fourth Proportional to 204,002.40, 306,003.60 and 128,878.95

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Solution

The fourth proportional to 204,002.40, 306,003.60 and 128,878.95 is: 193,318.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,002.40 : 306,003.60 = 128,878.95 : x
  2. Step 2: Convert to fraction form
    204,002.40/306,003.60 = 128,878.95/x
  3. Step 3: Cross multiply
    204,002.40x = 306,003.60 × 128,878.95
  4. Step 4: Simplify right side
    204,002.40x = 39,437,422,664.22
  5. Step 5: Solve for x
    x = 39,437,422,664.22/204,002.40
  6. Step 6: Final answer
    x = 193,318.43

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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.