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Finding the Fourth Proportional to 484,152.36, 668,120.67 and 269,287.80

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Solution

The fourth proportional to 484,152.36, 668,120.67 and 269,287.80 is: 371,611.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,152.36 : 668,120.67 = 269,287.80 : x
  2. Step 2: Convert to fraction form
    484,152.36/668,120.67 = 269,287.80/x
  3. Step 3: Cross multiply
    484,152.36x = 668,120.67 × 269,287.80
  4. Step 4: Simplify right side
    484,152.36x = 179,916,745,358.83
  5. Step 5: Solve for x
    x = 179,916,745,358.83/484,152.36
  6. Step 6: Final answer
    x = 371,611.83

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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.