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Finding the Fourth Proportional to 243,829.64, 336,497.59 and 136,401.47

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Solution

The fourth proportional to 243,829.64, 336,497.59 and 136,401.47 is: 188,241.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,829.64 : 336,497.59 = 136,401.47 : x
  2. Step 2: Convert to fraction form
    243,829.64/336,497.59 = 136,401.47/x
  3. Step 3: Cross multiply
    243,829.64x = 336,497.59 × 136,401.47
  4. Step 4: Simplify right side
    243,829.64x = 45,898,765,677.34
  5. Step 5: Solve for x
    x = 45,898,765,677.34/243,829.64
  6. Step 6: Final answer
    x = 188,241.12

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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.