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Finding the Fourth Proportional to 339,879.92, 509,887.94 and 190,332.88

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Solution

The fourth proportional to 339,879.92, 509,887.94 and 190,332.88 is: 285,537.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,879.92 : 509,887.94 = 190,332.88 : x
  2. Step 2: Convert to fraction form
    339,879.92/509,887.94 = 190,332.88/x
  3. Step 3: Cross multiply
    339,879.92x = 509,887.94 × 190,332.88
  4. Step 4: Simplify right side
    339,879.92x = 97,048,440,097.47
  5. Step 5: Solve for x
    x = 97,048,440,097.47/339,879.92
  6. Step 6: Final answer
    x = 285,537.43

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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.