Home / 329,455.10-493,617.94-221,181.68

Finding the Fourth Proportional to 329,455.10, 493,617.94 and 221,181.68

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Solution

The fourth proportional to 329,455.10, 493,617.94 and 221,181.68 is: 331,393.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,455.10 : 493,617.94 = 221,181.68 : x
  2. Step 2: Convert to fraction form
    329,455.10/493,617.94 = 221,181.68/x
  3. Step 3: Cross multiply
    329,455.10x = 493,617.94 × 221,181.68
  4. Step 4: Simplify right side
    329,455.10x = 109,179,245,247.34
  5. Step 5: Solve for x
    x = 109,179,245,247.34/329,455.10
  6. Step 6: Final answer
    x = 331,393.40

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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.