Home / 329,454.60-493,617.20-221,181.18

Finding the Fourth Proportional to 329,454.60, 493,617.20 and 221,181.18

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Solution

The fourth proportional to 329,454.60, 493,617.20 and 221,181.18 is: 331,392.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,454.60 : 493,617.20 = 221,181.18 : x
  2. Step 2: Convert to fraction form
    329,454.60/493,617.20 = 221,181.18/x
  3. Step 3: Cross multiply
    329,454.60x = 493,617.20 × 221,181.18
  4. Step 4: Simplify right side
    329,454.60x = 109,178,833,658.39
  5. Step 5: Solve for x
    x = 109,178,833,658.39/329,454.60
  6. Step 6: Final answer
    x = 331,392.65

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1.5x scale

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.