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Finding the Fourth Proportional to 340,367.05, 510,495.90 and 103,654.68

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Solution

The fourth proportional to 340,367.05, 510,495.90 and 103,654.68 is: 155,465.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,367.05 : 510,495.90 = 103,654.68 : x
  2. Step 2: Convert to fraction form
    340,367.05/510,495.90 = 103,654.68/x
  3. Step 3: Cross multiply
    340,367.05x = 510,495.90 × 103,654.68
  4. Step 4: Simplify right side
    340,367.05x = 52,915,289,155.81
  5. Step 5: Solve for x
    x = 52,915,289,155.81/340,367.05
  6. Step 6: Final answer
    x = 155,465.37

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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.