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Finding the Fourth Proportional to 262,400.40, 393,600.60 and 247,966.20

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Solution

The fourth proportional to 262,400.40, 393,600.60 and 247,966.20 is: 371,949.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,400.40 : 393,600.60 = 247,966.20 : x
  2. Step 2: Convert to fraction form
    262,400.40/393,600.60 = 247,966.20/x
  3. Step 3: Cross multiply
    262,400.40x = 393,600.60 × 247,966.20
  4. Step 4: Simplify right side
    262,400.40x = 97,599,645,099.72
  5. Step 5: Solve for x
    x = 97,599,645,099.72/262,400.40
  6. Step 6: Final answer
    x = 371,949.30

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1.5x scale

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.