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Finding the Fourth Proportional to 443,319.81, 664,675.92 and 159,004.26

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Solution

The fourth proportional to 443,319.81, 664,675.92 and 159,004.26 is: 238,397.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,319.81 : 664,675.92 = 159,004.26 : x
  2. Step 2: Convert to fraction form
    443,319.81/664,675.92 = 159,004.26/x
  3. Step 3: Cross multiply
    443,319.81x = 664,675.92 × 159,004.26
  4. Step 4: Simplify right side
    443,319.81x = 105,686,302,799.42
  5. Step 5: Solve for x
    x = 105,686,302,799.42/443,319.81
  6. Step 6: Final answer
    x = 238,397.43

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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.