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Finding the Fourth Proportional to 339,184.56, 508,691.79 and 139,560.06

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Solution

The fourth proportional to 339,184.56, 508,691.79 and 139,560.06 is: 209,305.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,184.56 : 508,691.79 = 139,560.06 : x
  2. Step 2: Convert to fraction form
    339,184.56/508,691.79 = 139,560.06/x
  3. Step 3: Cross multiply
    339,184.56x = 508,691.79 × 139,560.06
  4. Step 4: Simplify right side
    339,184.56x = 70,993,056,733.91
  5. Step 5: Solve for x
    x = 70,993,056,733.91/339,184.56
  6. Step 6: Final answer
    x = 209,305.10

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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.