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Finding the Fourth Proportional to 339,379.60, 508,390.56 and 204,368.80

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Solution

The fourth proportional to 339,379.60, 508,390.56 and 204,368.80 is: 306,144.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,379.60 : 508,390.56 = 204,368.80 : x
  2. Step 2: Convert to fraction form
    339,379.60/508,390.56 = 204,368.80/x
  3. Step 3: Cross multiply
    339,379.60x = 508,390.56 × 204,368.80
  4. Step 4: Simplify right side
    339,379.60x = 103,899,168,678.53
  5. Step 5: Solve for x
    x = 103,899,168,678.53/339,379.60
  6. Step 6: Final answer
    x = 306,144.41

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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.