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Finding the Fourth Proportional to 381,409.04, 526,328.52 and 211,633.04

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Solution

The fourth proportional to 381,409.04, 526,328.52 and 211,633.04 is: 292,044.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,409.04 : 526,328.52 = 211,633.04 : x
  2. Step 2: Convert to fraction form
    381,409.04/526,328.52 = 211,633.04/x
  3. Step 3: Cross multiply
    381,409.04x = 526,328.52 × 211,633.04
  4. Step 4: Simplify right side
    381,409.04x = 111,388,504,726.30
  5. Step 5: Solve for x
    x = 111,388,504,726.30/381,409.04
  6. Step 6: Final answer
    x = 292,044.74

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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.