Home / 280,401.24-386,958.96-153,081.66

Finding the Fourth Proportional to 280,401.24, 386,958.96 and 153,081.66

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Solution

The fourth proportional to 280,401.24, 386,958.96 and 153,081.66 is: 211,255.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,401.24 : 386,958.96 = 153,081.66 : x
  2. Step 2: Convert to fraction form
    280,401.24/386,958.96 = 153,081.66/x
  3. Step 3: Cross multiply
    280,401.24x = 386,958.96 × 153,081.66
  4. Step 4: Simplify right side
    280,401.24x = 59,236,319,948.67
  5. Step 5: Solve for x
    x = 59,236,319,948.67/280,401.24
  6. Step 6: Final answer
    x = 211,255.56

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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.