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Finding the Fourth Proportional to 247,788.72, 341,940.96 and 134,611.20

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Solution

The fourth proportional to 247,788.72, 341,940.96 and 134,611.20 is: 185,759.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,788.72 : 341,940.96 = 134,611.20 : x
  2. Step 2: Convert to fraction form
    247,788.72/341,940.96 = 134,611.20/x
  3. Step 3: Cross multiply
    247,788.72x = 341,940.96 × 134,611.20
  4. Step 4: Simplify right side
    247,788.72x = 46,029,082,954.75
  5. Step 5: Solve for x
    x = 46,029,082,954.75/247,788.72
  6. Step 6: Final answer
    x = 185,759.40

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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.