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Finding the Fourth Proportional to 381,335.04, 526,242.42 and 211,568.76

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Solution

The fourth proportional to 381,335.04, 526,242.42 and 211,568.76 is: 291,964.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,335.04 : 526,242.42 = 211,568.76 : x
  2. Step 2: Convert to fraction form
    381,335.04/526,242.42 = 211,568.76/x
  3. Step 3: Cross multiply
    381,335.04x = 526,242.42 × 211,568.76
  4. Step 4: Simplify right side
    381,335.04x = 111,336,456,258.80
  5. Step 5: Solve for x
    x = 111,336,456,258.80/381,335.04
  6. Step 6: Final answer
    x = 291,964.92

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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.