Home / 399,787.11-551,528.84-238,548.48

Finding the Fourth Proportional to 399,787.11, 551,528.84 and 238,548.48

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Solution

The fourth proportional to 399,787.11, 551,528.84 and 238,548.48 is: 329,091.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,787.11 : 551,528.84 = 238,548.48 : x
  2. Step 2: Convert to fraction form
    399,787.11/551,528.84 = 238,548.48/x
  3. Step 3: Cross multiply
    399,787.11x = 551,528.84 × 238,548.48
  4. Step 4: Simplify right side
    399,787.11x = 131,566,366,458.16
  5. Step 5: Solve for x
    x = 131,566,366,458.16/399,787.11
  6. Step 6: Final answer
    x = 329,091.07

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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.