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Finding the Fourth Proportional to 246,987.97, 340,838.96 and 139,555.71

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Solution

The fourth proportional to 246,987.97, 340,838.96 and 139,555.71 is: 192,584.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,987.97 : 340,838.96 = 139,555.71 : x
  2. Step 2: Convert to fraction form
    246,987.97/340,838.96 = 139,555.71/x
  3. Step 3: Cross multiply
    246,987.97x = 340,838.96 × 139,555.71
  4. Step 4: Simplify right side
    246,987.97x = 47,566,022,360.68
  5. Step 5: Solve for x
    x = 47,566,022,360.68/246,987.97
  6. Step 6: Final answer
    x = 192,584.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.