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Finding the Fourth Proportional to 246,695.58, 340,448.72 and 139,284.72

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Solution

The fourth proportional to 246,695.58, 340,448.72 and 139,284.72 is: 192,217.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,695.58 : 340,448.72 = 139,284.72 : x
  2. Step 2: Convert to fraction form
    246,695.58/340,448.72 = 139,284.72/x
  3. Step 3: Cross multiply
    246,695.58x = 340,448.72 × 139,284.72
  4. Step 4: Simplify right side
    246,695.58x = 47,419,304,639.56
  5. Step 5: Solve for x
    x = 47,419,304,639.56/246,695.58
  6. Step 6: Final answer
    x = 192,217.89

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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.