Home / 343,807.28-515,816.50-164,121.98

Finding the Fourth Proportional to 343,807.28, 515,816.50 and 164,121.98

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Solution

The fourth proportional to 343,807.28, 515,816.50 and 164,121.98 is: 246,233.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,807.28 : 515,816.50 = 164,121.98 : x
  2. Step 2: Convert to fraction form
    343,807.28/515,816.50 = 164,121.98/x
  3. Step 3: Cross multiply
    343,807.28x = 515,816.50 × 164,121.98
  4. Step 4: Simplify right side
    343,807.28x = 84,656,825,296.67
  5. Step 5: Solve for x
    x = 84,656,825,296.67/343,807.28
  6. Step 6: Final answer
    x = 246,233.37

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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.