Home / 399,758.08-551,734.40-238,621.44

Finding the Fourth Proportional to 399,758.08, 551,734.40 and 238,621.44

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Solution

The fourth proportional to 399,758.08, 551,734.40 and 238,621.44 is: 329,338.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,758.08 : 551,734.40 = 238,621.44 : x
  2. Step 2: Convert to fraction form
    399,758.08/551,734.40 = 238,621.44/x
  3. Step 3: Cross multiply
    399,758.08x = 551,734.40 × 238,621.44
  4. Step 4: Simplify right side
    399,758.08x = 131,655,657,025.54
  5. Step 5: Solve for x
    x = 131,655,657,025.54/399,758.08
  6. Step 6: Final answer
    x = 329,338.33

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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.