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Finding the Fourth Proportional to 340,273.56, 510,487.80 and 103,634.70

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Solution

The fourth proportional to 340,273.56, 510,487.80 and 103,634.70 is: 155,475.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,273.56 : 510,487.80 = 103,634.70 : x
  2. Step 2: Convert to fraction form
    340,273.56/510,487.80 = 103,634.70/x
  3. Step 3: Cross multiply
    340,273.56x = 510,487.80 × 103,634.70
  4. Step 4: Simplify right side
    340,273.56x = 52,904,250,006.66
  5. Step 5: Solve for x
    x = 52,904,250,006.66/340,273.56
  6. Step 6: Final answer
    x = 155,475.64

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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.