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Finding the Fourth Proportional to 285,484.86, 428,276.70 and 95,963.76

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Solution

The fourth proportional to 285,484.86, 428,276.70 and 95,963.76 is: 143,962.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,484.86 : 428,276.70 = 95,963.76 : x
  2. Step 2: Convert to fraction form
    285,484.86/428,276.70 = 95,963.76/x
  3. Step 3: Cross multiply
    285,484.86x = 428,276.70 × 95,963.76
  4. Step 4: Simplify right side
    285,484.86x = 41,099,042,452.39
  5. Step 5: Solve for x
    x = 41,099,042,452.39/285,484.86
  6. Step 6: Final answer
    x = 143,962.25

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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.