Home / 204,515.40-306,782.70-64,278.60

Finding the Fourth Proportional to 204,515.40, 306,782.70 and 64,278.60

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Solution

The fourth proportional to 204,515.40, 306,782.70 and 64,278.60 is: 96,420.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,515.40 : 306,782.70 = 64,278.60 : x
  2. Step 2: Convert to fraction form
    204,515.40/306,782.70 = 64,278.60/x
  3. Step 3: Cross multiply
    204,515.40x = 306,782.70 × 64,278.60
  4. Step 4: Simplify right side
    204,515.40x = 19,719,562,460.22
  5. Step 5: Solve for x
    x = 19,719,562,460.22/204,515.40
  6. Step 6: Final answer
    x = 96,420.92

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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.