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Finding the Fourth Proportional to 243,021.29, 335,361.55 and 132,635.71

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Solution

The fourth proportional to 243,021.29, 335,361.55 and 132,635.71 is: 183,033.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,021.29 : 335,361.55 = 132,635.71 : x
  2. Step 2: Convert to fraction form
    243,021.29/335,361.55 = 132,635.71/x
  3. Step 3: Cross multiply
    243,021.29x = 335,361.55 × 132,635.71
  4. Step 4: Simplify right side
    243,021.29x = 44,480,914,950.96
  5. Step 5: Solve for x
    x = 44,480,914,950.96/243,021.29
  6. Step 6: Final answer
    x = 183,033.00

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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.