Home / 399,330.26-551,098.04-218,059.01

Finding the Fourth Proportional to 399,330.26, 551,098.04 and 218,059.01

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Solution

The fourth proportional to 399,330.26, 551,098.04 and 218,059.01 is: 300,933.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,330.26 : 551,098.04 = 218,059.01 : x
  2. Step 2: Convert to fraction form
    399,330.26/551,098.04 = 218,059.01/x
  3. Step 3: Cross multiply
    399,330.26x = 551,098.04 × 218,059.01
  4. Step 4: Simplify right side
    399,330.26x = 120,171,889,169.56
  5. Step 5: Solve for x
    x = 120,171,889,169.56/399,330.26
  6. Step 6: Final answer
    x = 300,933.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.