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Finding the Fourth Proportional to 339,014.52, 508,324.86 and 128,537.64

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Solution

The fourth proportional to 339,014.52, 508,324.86 and 128,537.64 is: 192,731.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,014.52 : 508,324.86 = 128,537.64 : x
  2. Step 2: Convert to fraction form
    339,014.52/508,324.86 = 128,537.64/x
  3. Step 3: Cross multiply
    339,014.52x = 508,324.86 × 128,537.64
  4. Step 4: Simplify right side
    339,014.52x = 65,338,877,857.73
  5. Step 5: Solve for x
    x = 65,338,877,857.73/339,014.52
  6. Step 6: Final answer
    x = 192,731.80

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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.