Home / 399,286.04-551,011.88-217,997.96

Finding the Fourth Proportional to 399,286.04, 551,011.88 and 217,997.96

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Solution

The fourth proportional to 399,286.04, 551,011.88 and 217,997.96 is: 300,835.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,286.04 : 551,011.88 = 217,997.96 : x
  2. Step 2: Convert to fraction form
    399,286.04/551,011.88 = 217,997.96/x
  3. Step 3: Cross multiply
    399,286.04x = 551,011.88 × 217,997.96
  4. Step 4: Simplify right side
    399,286.04x = 120,119,465,775.77
  5. Step 5: Solve for x
    x = 120,119,465,775.77/399,286.04
  6. Step 6: Final answer
    x = 300,835.63

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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.