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Finding the Fourth Proportional to 536,834.92, 804,661.87 and 221,119.60

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Solution

The fourth proportional to 536,834.92, 804,661.87 and 221,119.60 is: 331,436.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,834.92 : 804,661.87 = 221,119.60 : x
  2. Step 2: Convert to fraction form
    536,834.92/804,661.87 = 221,119.60/x
  3. Step 3: Cross multiply
    536,834.92x = 804,661.87 × 221,119.60
  4. Step 4: Simplify right side
    536,834.92x = 177,926,510,829.65
  5. Step 5: Solve for x
    x = 177,926,510,829.65/536,834.92
  6. Step 6: Final answer
    x = 331,436.17

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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.