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Finding the Fourth Proportional to 246,857.64, 340,664.64 and 139,428.96

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Solution

The fourth proportional to 246,857.64, 340,664.64 and 139,428.96 is: 192,412.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,857.64 : 340,664.64 = 139,428.96 : x
  2. Step 2: Convert to fraction form
    246,857.64/340,664.64 = 139,428.96/x
  3. Step 3: Cross multiply
    246,857.64x = 340,664.64 × 139,428.96
  4. Step 4: Simplify right side
    246,857.64x = 47,498,516,463.97
  5. Step 5: Solve for x
    x = 47,498,516,463.97/246,857.64
  6. Step 6: Final answer
    x = 192,412.58

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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.