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Finding the Fourth Proportional to 342,562.10, 513,843.15 and 328,565.30

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Solution

The fourth proportional to 342,562.10, 513,843.15 and 328,565.30 is: 492,847.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,562.10 : 513,843.15 = 328,565.30 : x
  2. Step 2: Convert to fraction form
    342,562.10/513,843.15 = 328,565.30/x
  3. Step 3: Cross multiply
    342,562.10x = 513,843.15 × 328,565.30
  4. Step 4: Simplify right side
    342,562.10x = 168,831,028,732.70
  5. Step 5: Solve for x
    x = 168,831,028,732.70/342,562.10
  6. Step 6: Final answer
    x = 492,847.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.