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Finding the Fourth Proportional to 246,697.81, 340,440.55 and 139,265.53

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Solution

The fourth proportional to 246,697.81, 340,440.55 and 139,265.53 is: 192,185.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,697.81 : 340,440.55 = 139,265.53 : x
  2. Step 2: Convert to fraction form
    246,697.81/340,440.55 = 139,265.53/x
  3. Step 3: Cross multiply
    246,697.81x = 340,440.55 × 139,265.53
  4. Step 4: Simplify right side
    246,697.81x = 47,411,633,629.24
  5. Step 5: Solve for x
    x = 47,411,633,629.24/246,697.81
  6. Step 6: Final answer
    x = 192,185.06

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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.