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Finding the Fourth Proportional to 293,889.80, 440,849.10 and 153,921.80

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Solution

The fourth proportional to 293,889.80, 440,849.10 and 153,921.80 is: 230,890.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,889.80 : 440,849.10 = 153,921.80 : x
  2. Step 2: Convert to fraction form
    293,889.80/440,849.10 = 153,921.80/x
  3. Step 3: Cross multiply
    293,889.80x = 440,849.10 × 153,921.80
  4. Step 4: Simplify right side
    293,889.80x = 67,856,287,000.38
  5. Step 5: Solve for x
    x = 67,856,287,000.38/293,889.80
  6. Step 6: Final answer
    x = 230,890.24

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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.