Home / 399,340.13-551,086.61-218,052

Finding the Fourth Proportional to 399,340.13, 551,086.61 and 218,052

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Solution

The fourth proportional to 399,340.13, 551,086.61 and 218,052 is: 300,910.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,340.13 : 551,086.61 = 218,052 : x
  2. Step 2: Convert to fraction form
    399,340.13/551,086.61 = 218,052/x
  3. Step 3: Cross multiply
    399,340.13x = 551,086.61 × 218,052
  4. Step 4: Simplify right side
    399,340.13x = 120,165,536,393.46
  5. Step 5: Solve for x
    x = 120,165,536,393.46/399,340.13
  6. Step 6: Final answer
    x = 300,910.25

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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.