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Finding the Fourth Proportional to 283,550.56, 425,381.76 and 81,148.56

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Solution

The fourth proportional to 283,550.56, 425,381.76 and 81,148.56 is: 121,738.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,550.56 : 425,381.76 = 81,148.56 : x
  2. Step 2: Convert to fraction form
    283,550.56/425,381.76 = 81,148.56/x
  3. Step 3: Cross multiply
    283,550.56x = 425,381.76 × 81,148.56
  4. Step 4: Simplify right side
    283,550.56x = 34,519,117,274.27
  5. Step 5: Solve for x
    x = 34,519,117,274.27/283,550.56
  6. Step 6: Final answer
    x = 121,738.84

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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.