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Finding the Fourth Proportional to 287,770.86, 431,689.63 and 95,662.48

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Solution

The fourth proportional to 287,770.86, 431,689.63 and 95,662.48 is: 143,504.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,770.86 : 431,689.63 = 95,662.48 : x
  2. Step 2: Convert to fraction form
    287,770.86/431,689.63 = 95,662.48/x
  3. Step 3: Cross multiply
    287,770.86x = 431,689.63 × 95,662.48
  4. Step 4: Simplify right side
    287,770.86x = 41,296,500,356.93
  5. Step 5: Solve for x
    x = 41,296,500,356.93/287,770.86
  6. Step 6: Final answer
    x = 143,504.80

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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.