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Finding the Fourth Proportional to 381,304.45, 526,246.80 and 220,159.23

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Solution

The fourth proportional to 381,304.45, 526,246.80 and 220,159.23 is: 303,846.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,304.45 : 526,246.80 = 220,159.23 : x
  2. Step 2: Convert to fraction form
    381,304.45/526,246.80 = 220,159.23/x
  3. Step 3: Cross multiply
    381,304.45x = 526,246.80 × 220,159.23
  4. Step 4: Simplify right side
    381,304.45x = 115,858,087,646.73
  5. Step 5: Solve for x
    x = 115,858,087,646.73/381,304.45
  6. Step 6: Final answer
    x = 303,846.67

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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.