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Finding the Fourth Proportional to 550,269.45, 825,409.50 and 208,621.01

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Solution

The fourth proportional to 550,269.45, 825,409.50 and 208,621.01 is: 312,933.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,269.45 : 825,409.50 = 208,621.01 : x
  2. Step 2: Convert to fraction form
    550,269.45/825,409.50 = 208,621.01/x
  3. Step 3: Cross multiply
    550,269.45x = 825,409.50 × 208,621.01
  4. Step 4: Simplify right side
    550,269.45x = 172,197,760,332.98
  5. Step 5: Solve for x
    x = 172,197,760,332.98/550,269.45
  6. Step 6: Final answer
    x = 312,933.53

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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.