Home / 399,942.05-551,926.59-238,811.18

Finding the Fourth Proportional to 399,942.05, 551,926.59 and 238,811.18

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Solution

The fourth proportional to 399,942.05, 551,926.59 and 238,811.18 is: 329,563.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,942.05 : 551,926.59 = 238,811.18 : x
  2. Step 2: Convert to fraction form
    399,942.05/551,926.59 = 238,811.18/x
  3. Step 3: Cross multiply
    399,942.05x = 551,926.59 × 238,811.18
  4. Step 4: Simplify right side
    399,942.05x = 131,806,240,231.28
  5. Step 5: Solve for x
    x = 131,806,240,231.28/399,942.05
  6. Step 6: Final answer
    x = 329,563.35

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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.