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Finding the Fourth Proportional to 443,564.60, 665,346.90 and 207,368.60

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Solution

The fourth proportional to 443,564.60, 665,346.90 and 207,368.60 is: 311,052.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,564.60 : 665,346.90 = 207,368.60 : x
  2. Step 2: Convert to fraction form
    443,564.60/665,346.90 = 207,368.60/x
  3. Step 3: Cross multiply
    443,564.60x = 665,346.90 × 207,368.60
  4. Step 4: Simplify right side
    443,564.60x = 137,972,055,167.34
  5. Step 5: Solve for x
    x = 137,972,055,167.34/443,564.60
  6. Step 6: Final answer
    x = 311,052.90

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.