Home / 280,138.30-386,955.48-226,625.14

Finding the Fourth Proportional to 280,138.30, 386,955.48 and 226,625.14

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Solution

The fourth proportional to 280,138.30, 386,955.48 and 226,625.14 is: 313,037.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,138.30 : 386,955.48 = 226,625.14 : x
  2. Step 2: Convert to fraction form
    280,138.30/386,955.48 = 226,625.14/x
  3. Step 3: Cross multiply
    280,138.30x = 386,955.48 × 226,625.14
  4. Step 4: Simplify right side
    280,138.30x = 87,693,839,887.54
  5. Step 5: Solve for x
    x = 87,693,839,887.54/280,138.30
  6. Step 6: Final answer
    x = 313,037.67

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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.