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Finding the Fourth Proportional to 381,632.40, 526,818.60 and 247,539.60

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Solution

The fourth proportional to 381,632.40, 526,818.60 and 247,539.60 is: 341,712.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,632.40 : 526,818.60 = 247,539.60 : x
  2. Step 2: Convert to fraction form
    381,632.40/526,818.60 = 247,539.60/x
  3. Step 3: Cross multiply
    381,632.40x = 526,818.60 × 247,539.60
  4. Step 4: Simplify right side
    381,632.40x = 130,408,465,516.56
  5. Step 5: Solve for x
    x = 130,408,465,516.56/381,632.40
  6. Step 6: Final answer
    x = 341,712.25

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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.