Home / 243,845.08-336,490.38-136,396.72

Finding the Fourth Proportional to 243,845.08, 336,490.38 and 136,396.72

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Solution

The fourth proportional to 243,845.08, 336,490.38 and 136,396.72 is: 188,218.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,845.08 : 336,490.38 = 136,396.72 : x
  2. Step 2: Convert to fraction form
    243,845.08/336,490.38 = 136,396.72/x
  3. Step 3: Cross multiply
    243,845.08x = 336,490.38 × 136,396.72
  4. Step 4: Simplify right side
    243,845.08x = 45,896,184,143.55
  5. Step 5: Solve for x
    x = 45,896,184,143.55/243,845.08
  6. Step 6: Final answer
    x = 188,218.62

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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.