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Finding the Fourth Proportional to 285,086.79, 427,334.94 and 234,636.81

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Solution

The fourth proportional to 285,086.79, 427,334.94 and 234,636.81 is: 351,712.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,086.79 : 427,334.94 = 234,636.81 : x
  2. Step 2: Convert to fraction form
    285,086.79/427,334.94 = 234,636.81/x
  3. Step 3: Cross multiply
    285,086.79x = 427,334.94 × 234,636.81
  4. Step 4: Simplify right side
    285,086.79x = 100,268,507,123.14
  5. Step 5: Solve for x
    x = 100,268,507,123.14/285,086.79
  6. Step 6: Final answer
    x = 351,712.22

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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.