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Finding the Fourth Proportional to 243,610.21, 336,183.44 and 136,184.77

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Solution

The fourth proportional to 243,610.21, 336,183.44 and 136,184.77 is: 187,935.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,610.21 : 336,183.44 = 136,184.77 : x
  2. Step 2: Convert to fraction form
    243,610.21/336,183.44 = 136,184.77/x
  3. Step 3: Cross multiply
    243,610.21x = 336,183.44 × 136,184.77
  4. Step 4: Simplify right side
    243,610.21x = 45,783,064,454.21
  5. Step 5: Solve for x
    x = 45,783,064,454.21/243,610.21
  6. Step 6: Final answer
    x = 187,935.74

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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.