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Finding the Fourth Proportional to 656,630.87, 984,975.80 and 201,188.73

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Solution

The fourth proportional to 656,630.87, 984,975.80 and 201,188.73 is: 301,792.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,630.87 : 984,975.80 = 201,188.73 : x
  2. Step 2: Convert to fraction form
    656,630.87/984,975.80 = 201,188.73/x
  3. Step 3: Cross multiply
    656,630.87x = 984,975.80 × 201,188.73
  4. Step 4: Simplify right side
    656,630.87x = 198,166,034,385.06
  5. Step 5: Solve for x
    x = 198,166,034,385.06/656,630.87
  6. Step 6: Final answer
    x = 301,792.14

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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.