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Finding the Fourth Proportional to 339,331.10, 508,883.63 and 136,874.91

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Solution

The fourth proportional to 339,331.10, 508,883.63 and 136,874.91 is: 205,266.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,331.10 : 508,883.63 = 136,874.91 : x
  2. Step 2: Convert to fraction form
    339,331.10/508,883.63 = 136,874.91/x
  3. Step 3: Cross multiply
    339,331.10x = 508,883.63 × 136,874.91
  4. Step 4: Simplify right side
    339,331.10x = 69,653,402,280.66
  5. Step 5: Solve for x
    x = 69,653,402,280.66/339,331.10
  6. Step 6: Final answer
    x = 205,266.78

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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.