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Finding the Fourth Proportional to 381,836.64, 526,926.96 and 212,064.96

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Solution

The fourth proportional to 381,836.64, 526,926.96 and 212,064.96 is: 292,645.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,836.64 : 526,926.96 = 212,064.96 : x
  2. Step 2: Convert to fraction form
    381,836.64/526,926.96 = 212,064.96/x
  3. Step 3: Cross multiply
    381,836.64x = 526,926.96 × 212,064.96
  4. Step 4: Simplify right side
    381,836.64x = 111,742,744,695.32
  5. Step 5: Solve for x
    x = 111,742,744,695.32/381,836.64
  6. Step 6: Final answer
    x = 292,645.42

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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.