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Finding the Fourth Proportional to 443,817.60, 666,244.80 and 254,428.80

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Solution

The fourth proportional to 443,817.60, 666,244.80 and 254,428.80 is: 381,940.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,817.60 : 666,244.80 = 254,428.80 : x
  2. Step 2: Convert to fraction form
    443,817.60/666,244.80 = 254,428.80/x
  3. Step 3: Cross multiply
    443,817.60x = 666,244.80 × 254,428.80
  4. Step 4: Simplify right side
    443,817.60x = 169,511,864,970.24
  5. Step 5: Solve for x
    x = 169,511,864,970.24/443,817.60
  6. Step 6: Final answer
    x = 381,940.38

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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.