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Finding the Fourth Proportional to 329,587.85, 493,816.74 and 221,314.26

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Solution

The fourth proportional to 329,587.85, 493,816.74 and 221,314.26 is: 331,591.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,587.85 : 493,816.74 = 221,314.26 : x
  2. Step 2: Convert to fraction form
    329,587.85/493,816.74 = 221,314.26/x
  3. Step 3: Cross multiply
    329,587.85x = 493,816.74 × 221,314.26
  4. Step 4: Simplify right side
    329,587.85x = 109,288,686,388.71
  5. Step 5: Solve for x
    x = 109,288,686,388.71/329,587.85
  6. Step 6: Final answer
    x = 331,591.98

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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.