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Finding the Fourth Proportional to 295,612.42, 443,415.38 and 85,243.54

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Solution

The fourth proportional to 295,612.42, 443,415.38 and 85,243.54 is: 127,864.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,612.42 : 443,415.38 = 85,243.54 : x
  2. Step 2: Convert to fraction form
    295,612.42/443,415.38 = 85,243.54/x
  3. Step 3: Cross multiply
    295,612.42x = 443,415.38 × 85,243.54
  4. Step 4: Simplify right side
    295,612.42x = 37,798,296,681.65
  5. Step 5: Solve for x
    x = 37,798,296,681.65/295,612.42
  6. Step 6: Final answer
    x = 127,864.37

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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.