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Finding the Fourth Proportional to 484,287.60, 726,172.20 and 203,487.60

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Solution

The fourth proportional to 484,287.60, 726,172.20 and 203,487.60 is: 305,122.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,287.60 : 726,172.20 = 203,487.60 : x
  2. Step 2: Convert to fraction form
    484,287.60/726,172.20 = 203,487.60/x
  3. Step 3: Cross multiply
    484,287.60x = 726,172.20 × 203,487.60
  4. Step 4: Simplify right side
    484,287.60x = 147,767,038,164.72
  5. Step 5: Solve for x
    x = 147,767,038,164.72/484,287.60
  6. Step 6: Final answer
    x = 305,122.49

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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.