Home / 399,784.26-551,700.97-218,496.15

Finding the Fourth Proportional to 399,784.26, 551,700.97 and 218,496.15

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Solution

The fourth proportional to 399,784.26, 551,700.97 and 218,496.15 is: 301,523.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,784.26 : 551,700.97 = 218,496.15 : x
  2. Step 2: Convert to fraction form
    399,784.26/551,700.97 = 218,496.15/x
  3. Step 3: Cross multiply
    399,784.26x = 551,700.97 × 218,496.15
  4. Step 4: Simplify right side
    399,784.26x = 120,544,537,896.27
  5. Step 5: Solve for x
    x = 120,544,537,896.27/399,784.26
  6. Step 6: Final answer
    x = 301,523.97

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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.