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Finding the Fourth Proportional to 340,921.82, 511,300.71 and 104,266.55

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Solution

The fourth proportional to 340,921.82, 511,300.71 and 104,266.55 is: 156,374.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,921.82 : 511,300.71 = 104,266.55 : x
  2. Step 2: Convert to fraction form
    340,921.82/511,300.71 = 104,266.55/x
  3. Step 3: Cross multiply
    340,921.82x = 511,300.71 × 104,266.55
  4. Step 4: Simplify right side
    340,921.82x = 53,311,558,487.75
  5. Step 5: Solve for x
    x = 53,311,558,487.75/340,921.82
  6. Step 6: Final answer
    x = 156,374.74

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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.