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Finding the Fourth Proportional to 231,682.79, 347,552.81 and 81,892.19

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Solution

The fourth proportional to 231,682.79, 347,552.81 and 81,892.19 is: 122,848.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,682.79 : 347,552.81 = 81,892.19 : x
  2. Step 2: Convert to fraction form
    231,682.79/347,552.81 = 81,892.19/x
  3. Step 3: Cross multiply
    231,682.79x = 347,552.81 × 81,892.19
  4. Step 4: Simplify right side
    231,682.79x = 28,461,860,342.09
  5. Step 5: Solve for x
    x = 28,461,860,342.09/231,682.79
  6. Step 6: Final answer
    x = 122,848.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.