Home / 280,240.29-420,362.06-230,791.41

Finding the Fourth Proportional to 280,240.29, 420,362.06 and 230,791.41

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Solution

The fourth proportional to 280,240.29, 420,362.06 and 230,791.41 is: 346,188.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,240.29 : 420,362.06 = 230,791.41 : x
  2. Step 2: Convert to fraction form
    280,240.29/420,362.06 = 230,791.41/x
  3. Step 3: Cross multiply
    280,240.29x = 420,362.06 × 230,791.41
  4. Step 4: Simplify right side
    280,240.29x = 97,015,951,383.95
  5. Step 5: Solve for x
    x = 97,015,951,383.95/280,240.29
  6. Step 6: Final answer
    x = 346,188.45

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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.