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Finding the Fourth Proportional to 285,617.11, 425,872.18 and 277,770.06

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Solution

The fourth proportional to 285,617.11, 425,872.18 and 277,770.06 is: 414,171.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,617.11 : 425,872.18 = 277,770.06 : x
  2. Step 2: Convert to fraction form
    285,617.11/425,872.18 = 277,770.06/x
  3. Step 3: Cross multiply
    285,617.11x = 425,872.18 × 277,770.06
  4. Step 4: Simplify right side
    285,617.11x = 118,294,540,990.93
  5. Step 5: Solve for x
    x = 118,294,540,990.93/285,617.11
  6. Step 6: Final answer
    x = 414,171.76

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.