Home / 243,880.21-336,567.77-136,443.82

Finding the Fourth Proportional to 243,880.21, 336,567.77 and 136,443.82

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Solution

The fourth proportional to 243,880.21, 336,567.77 and 136,443.82 is: 188,299.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,880.21 : 336,567.77 = 136,443.82 : x
  2. Step 2: Convert to fraction form
    243,880.21/336,567.77 = 136,443.82/x
  3. Step 3: Cross multiply
    243,880.21x = 336,567.77 × 136,443.82
  4. Step 4: Simplify right side
    243,880.21x = 45,922,592,227.68
  5. Step 5: Solve for x
    x = 45,922,592,227.68/243,880.21
  6. Step 6: Final answer
    x = 188,299.79

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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.