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Finding the Fourth Proportional to 340,941.68, 511,469.88 and 104,228.96

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Solution

The fourth proportional to 340,941.68, 511,469.88 and 104,228.96 is: 156,360.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,941.68 : 511,469.88 = 104,228.96 : x
  2. Step 2: Convert to fraction form
    340,941.68/511,469.88 = 104,228.96/x
  3. Step 3: Cross multiply
    340,941.68x = 511,469.88 × 104,228.96
  4. Step 4: Simplify right side
    340,941.68x = 53,309,973,663.72
  5. Step 5: Solve for x
    x = 53,309,973,663.72/340,941.68
  6. Step 6: Final answer
    x = 156,360.98

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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.