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Finding the Fourth Proportional to 381,339.54, 526,248.63 and 211,573.26

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Solution

The fourth proportional to 381,339.54, 526,248.63 and 211,573.26 is: 291,971.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,339.54 : 526,248.63 = 211,573.26 : x
  2. Step 2: Convert to fraction form
    381,339.54/526,248.63 = 211,573.26/x
  3. Step 3: Cross multiply
    381,339.54x = 526,248.63 × 211,573.26
  4. Step 4: Simplify right side
    381,339.54x = 111,340,138,219.63
  5. Step 5: Solve for x
    x = 111,340,138,219.63/381,339.54
  6. Step 6: Final answer
    x = 291,971.13

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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.