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Finding the Fourth Proportional to 329,552.60, 494,328.90 and 217,286.60

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Solution

The fourth proportional to 329,552.60, 494,328.90 and 217,286.60 is: 325,929.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,552.60 : 494,328.90 = 217,286.60 : x
  2. Step 2: Convert to fraction form
    329,552.60/494,328.90 = 217,286.60/x
  3. Step 3: Cross multiply
    329,552.60x = 494,328.90 × 217,286.60
  4. Step 4: Simplify right side
    329,552.60x = 107,411,045,962.74
  5. Step 5: Solve for x
    x = 107,411,045,962.74/329,552.60
  6. Step 6: Final answer
    x = 325,929.90

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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.