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Finding the Fourth Proportional to 339,080.40, 508,705.65 and 149,576.85

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Solution

The fourth proportional to 339,080.40, 508,705.65 and 149,576.85 is: 224,402.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,080.40 : 508,705.65 = 149,576.85 : x
  2. Step 2: Convert to fraction form
    339,080.40/508,705.65 = 149,576.85/x
  3. Step 3: Cross multiply
    339,080.40x = 508,705.65 × 149,576.85
  4. Step 4: Simplify right side
    339,080.40x = 76,090,588,704.20
  5. Step 5: Solve for x
    x = 76,090,588,704.20/339,080.40
  6. Step 6: Final answer
    x = 224,402.79

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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.