Home / 204,343.40-306,515.10-147,918.80

Finding the Fourth Proportional to 204,343.40, 306,515.10 and 147,918.80

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Solution

The fourth proportional to 204,343.40, 306,515.10 and 147,918.80 is: 221,878.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,343.40 : 306,515.10 = 147,918.80 : x
  2. Step 2: Convert to fraction form
    204,343.40/306,515.10 = 147,918.80/x
  3. Step 3: Cross multiply
    204,343.40x = 306,515.10 × 147,918.80
  4. Step 4: Simplify right side
    204,343.40x = 45,339,345,773.88
  5. Step 5: Solve for x
    x = 45,339,345,773.88/204,343.40
  6. Step 6: Final answer
    x = 221,878.20

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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.