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Finding the Fourth Proportional to 243,944.86, 336,657.98 and 136,513.93

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Solution

The fourth proportional to 243,944.86, 336,657.98 and 136,513.93 is: 188,397.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,944.86 : 336,657.98 = 136,513.93 : x
  2. Step 2: Convert to fraction form
    243,944.86/336,657.98 = 136,513.93/x
  3. Step 3: Cross multiply
    243,944.86x = 336,657.98 × 136,513.93
  4. Step 4: Simplify right side
    243,944.86x = 45,958,503,915.66
  5. Step 5: Solve for x
    x = 45,958,503,915.66/243,944.86
  6. Step 6: Final answer
    x = 188,397.10

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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.