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Finding the Fourth Proportional to 381,294.95, 526,029.39 and 220,035.56

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Solution

The fourth proportional to 381,294.95, 526,029.39 and 220,035.56 is: 303,558.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,294.95 : 526,029.39 = 220,035.56 : x
  2. Step 2: Convert to fraction form
    381,294.95/526,029.39 = 220,035.56/x
  3. Step 3: Cross multiply
    381,294.95x = 526,029.39 × 220,035.56
  4. Step 4: Simplify right side
    381,294.95x = 115,745,168,774.96
  5. Step 5: Solve for x
    x = 115,745,168,774.96/381,294.95
  6. Step 6: Final answer
    x = 303,558.10

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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.