Home / 399,968.18-551,964.78-238,793.16

Finding the Fourth Proportional to 399,968.18, 551,964.78 and 238,793.16

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Solution

The fourth proportional to 399,968.18, 551,964.78 and 238,793.16 is: 329,539.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,968.18 : 551,964.78 = 238,793.16 : x
  2. Step 2: Convert to fraction form
    399,968.18/551,964.78 = 238,793.16/x
  3. Step 3: Cross multiply
    399,968.18x = 551,964.78 × 238,793.16
  4. Step 4: Simplify right side
    399,968.18x = 131,805,416,094.77
  5. Step 5: Solve for x
    x = 131,805,416,094.77/399,968.18
  6. Step 6: Final answer
    x = 329,539.76

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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.