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Finding the Fourth Proportional to 439,392.60, 658,505.70 and 228,974.04

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Solution

The fourth proportional to 439,392.60, 658,505.70 and 228,974.04 is: 343,157.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,392.60 : 658,505.70 = 228,974.04 : x
  2. Step 2: Convert to fraction form
    439,392.60/658,505.70 = 228,974.04/x
  3. Step 3: Cross multiply
    439,392.60x = 658,505.70 × 228,974.04
  4. Step 4: Simplify right side
    439,392.60x = 150,780,710,492.03
  5. Step 5: Solve for x
    x = 150,780,710,492.03/439,392.60
  6. Step 6: Final answer
    x = 343,157.15

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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.