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Finding the Fourth Proportional to 221,809.52, 306,005.64 and 161,247.44

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Solution

The fourth proportional to 221,809.52, 306,005.64 and 161,247.44 is: 222,454.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,809.52 : 306,005.64 = 161,247.44 : x
  2. Step 2: Convert to fraction form
    221,809.52/306,005.64 = 161,247.44/x
  3. Step 3: Cross multiply
    221,809.52x = 306,005.64 × 161,247.44
  4. Step 4: Simplify right side
    221,809.52x = 49,342,626,075.56
  5. Step 5: Solve for x
    x = 49,342,626,075.56/221,809.52
  6. Step 6: Final answer
    x = 222,454.95

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1.5x scale

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.