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Finding the Fourth Proportional to 381,384.92, 526,276.40 and 226,309.48

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Solution

The fourth proportional to 381,384.92, 526,276.40 and 226,309.48 is: 312,286.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,384.92 : 526,276.40 = 226,309.48 : x
  2. Step 2: Convert to fraction form
    381,384.92/526,276.40 = 226,309.48/x
  3. Step 3: Cross multiply
    381,384.92x = 526,276.40 × 226,309.48
  4. Step 4: Simplify right side
    381,384.92x = 119,101,338,420.27
  5. Step 5: Solve for x
    x = 119,101,338,420.27/381,384.92
  6. Step 6: Final answer
    x = 312,286.44

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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.