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Finding the Fourth Proportional to 340,556.64, 510,833.54 and 103,898.54

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Solution

The fourth proportional to 340,556.64, 510,833.54 and 103,898.54 is: 155,847.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,556.64 : 510,833.54 = 103,898.54 : x
  2. Step 2: Convert to fraction form
    340,556.64/510,833.54 = 103,898.54/x
  3. Step 3: Cross multiply
    340,556.64x = 510,833.54 × 103,898.54
  4. Step 4: Simplify right side
    340,556.64x = 53,074,858,989.03
  5. Step 5: Solve for x
    x = 53,074,858,989.03/340,556.64
  6. Step 6: Final answer
    x = 155,847.38

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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.