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Finding the Fourth Proportional to 647,232.20, 970,157.10 and 247,718.60

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Solution

The fourth proportional to 647,232.20, 970,157.10 and 247,718.60 is: 371,313.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,232.20 : 970,157.10 = 247,718.60 : x
  2. Step 2: Convert to fraction form
    647,232.20/970,157.10 = 247,718.60/x
  3. Step 3: Cross multiply
    647,232.20x = 970,157.10 × 247,718.60
  4. Step 4: Simplify right side
    647,232.20x = 240,325,958,592.06
  5. Step 5: Solve for x
    x = 240,325,958,592.06/647,232.20
  6. Step 6: Final answer
    x = 371,313.35

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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.