Home / 285,431.08-393,736.26-224,778.28

Finding the Fourth Proportional to 285,431.08, 393,736.26 and 224,778.28

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Solution

The fourth proportional to 285,431.08, 393,736.26 and 224,778.28 is: 310,069.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,431.08 : 393,736.26 = 224,778.28 : x
  2. Step 2: Convert to fraction form
    285,431.08/393,736.26 = 224,778.28/x
  3. Step 3: Cross multiply
    285,431.08x = 393,736.26 × 224,778.28
  4. Step 4: Simplify right side
    285,431.08x = 88,503,359,296.43
  5. Step 5: Solve for x
    x = 88,503,359,296.43/285,431.08
  6. Step 6: Final answer
    x = 310,069.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.