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Finding the Fourth Proportional to 381,554.30, 526,544.52 and 211,788.02

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Solution

The fourth proportional to 381,554.30, 526,544.52 and 211,788.02 is: 292,267.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,554.30 : 526,544.52 = 211,788.02 : x
  2. Step 2: Convert to fraction form
    381,554.30/526,544.52 = 211,788.02/x
  3. Step 3: Cross multiply
    381,554.30x = 526,544.52 × 211,788.02
  4. Step 4: Simplify right side
    381,554.30x = 111,515,821,332.65
  5. Step 5: Solve for x
    x = 111,515,821,332.65/381,554.30
  6. Step 6: Final answer
    x = 292,267.24

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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.