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Finding the Fourth Proportional to 340,600.64, 510,896.78 and 103,943.96

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Solution

The fourth proportional to 340,600.64, 510,896.78 and 103,943.96 is: 155,914.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,600.64 : 510,896.78 = 103,943.96 : x
  2. Step 2: Convert to fraction form
    340,600.64/510,896.78 = 103,943.96/x
  3. Step 3: Cross multiply
    340,600.64x = 510,896.78 × 103,943.96
  4. Step 4: Simplify right side
    340,600.64x = 53,104,631,390.25
  5. Step 5: Solve for x
    x = 53,104,631,390.25/340,600.64
  6. Step 6: Final answer
    x = 155,914.66

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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.