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Finding the Fourth Proportional to 443,818.60, 666,246.30 and 254,429.80

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Solution

The fourth proportional to 443,818.60, 666,246.30 and 254,429.80 is: 381,941.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,818.60 : 666,246.30 = 254,429.80 : x
  2. Step 2: Convert to fraction form
    443,818.60/666,246.30 = 254,429.80/x
  3. Step 3: Cross multiply
    443,818.60x = 666,246.30 × 254,429.80
  4. Step 4: Simplify right side
    443,818.60x = 169,512,912,859.74
  5. Step 5: Solve for x
    x = 169,512,912,859.74/443,818.60
  6. Step 6: Final answer
    x = 381,941.89

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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.