Home / 399,883.24-551,837.60-218,595.22

Finding the Fourth Proportional to 399,883.24, 551,837.60 and 218,595.22

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Solution

The fourth proportional to 399,883.24, 551,837.60 and 218,595.22 is: 301,660.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,883.24 : 551,837.60 = 218,595.22 : x
  2. Step 2: Convert to fraction form
    399,883.24/551,837.60 = 218,595.22/x
  3. Step 3: Cross multiply
    399,883.24x = 551,837.60 × 218,595.22
  4. Step 4: Simplify right side
    399,883.24x = 120,629,057,724.11
  5. Step 5: Solve for x
    x = 120,629,057,724.11/399,883.24
  6. Step 6: Final answer
    x = 301,660.70

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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.