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Finding the Fourth Proportional to 340,342.40, 510,513.60 and 103,654.33

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Solution

The fourth proportional to 340,342.40, 510,513.60 and 103,654.33 is: 155,481.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,342.40 : 510,513.60 = 103,654.33 : x
  2. Step 2: Convert to fraction form
    340,342.40/510,513.60 = 103,654.33/x
  3. Step 3: Cross multiply
    340,342.40x = 510,513.60 × 103,654.33
  4. Step 4: Simplify right side
    340,342.40x = 52,916,945,163.89
  5. Step 5: Solve for x
    x = 52,916,945,163.89/340,342.40
  6. Step 6: Final answer
    x = 155,481.50

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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.