Home / 381,723.72-526,802.66-220,608.20

Finding the Fourth Proportional to 381,723.72, 526,802.66 and 220,608.20

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Solution

The fourth proportional to 381,723.72, 526,802.66 and 220,608.20 is: 304,453.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,723.72 : 526,802.66 = 220,608.20 : x
  2. Step 2: Convert to fraction form
    381,723.72/526,802.66 = 220,608.20/x
  3. Step 3: Cross multiply
    381,723.72x = 526,802.66 × 220,608.20
  4. Step 4: Simplify right side
    381,723.72x = 116,216,986,577.81
  5. Step 5: Solve for x
    x = 116,216,986,577.81/381,723.72
  6. Step 6: Final answer
    x = 304,453.14

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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.