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Finding the Fourth Proportional to 340,369.80, 510,500.03 and 103,657.43

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Solution

The fourth proportional to 340,369.80, 510,500.03 and 103,657.43 is: 155,469.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,369.80 : 510,500.03 = 103,657.43 : x
  2. Step 2: Convert to fraction form
    340,369.80/510,500.03 = 103,657.43/x
  3. Step 3: Cross multiply
    340,369.80x = 510,500.03 × 103,657.43
  4. Step 4: Simplify right side
    340,369.80x = 52,917,118,053.94
  5. Step 5: Solve for x
    x = 52,917,118,053.94/340,369.80
  6. Step 6: Final answer
    x = 155,469.49

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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.