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Finding the Fourth Proportional to 243,998.89, 336,725.59 and 136,566.16

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Solution

The fourth proportional to 243,998.89, 336,725.59 and 136,566.16 is: 188,465.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,998.89 : 336,725.59 = 136,566.16 : x
  2. Step 2: Convert to fraction form
    243,998.89/336,725.59 = 136,566.16/x
  3. Step 3: Cross multiply
    243,998.89x = 336,725.59 × 136,566.16
  4. Step 4: Simplify right side
    243,998.89x = 45,985,319,116.41
  5. Step 5: Solve for x
    x = 45,985,319,116.41/243,998.89
  6. Step 6: Final answer
    x = 188,465.28

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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.