Home / 285,739.11-428,578.56-117,277.20

Finding the Fourth Proportional to 285,739.11, 428,578.56 and 117,277.20

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Solution

The fourth proportional to 285,739.11, 428,578.56 and 117,277.20 is: 175,903.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,739.11 : 428,578.56 = 117,277.20 : x
  2. Step 2: Convert to fraction form
    285,739.11/428,578.56 = 117,277.20/x
  3. Step 3: Cross multiply
    285,739.11x = 428,578.56 × 117,277.20
  4. Step 4: Simplify right side
    285,739.11x = 50,262,493,496.83
  5. Step 5: Solve for x
    x = 50,262,493,496.83/285,739.11
  6. Step 6: Final answer
    x = 175,903.44

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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.