Home / 399,882.74-551,836.91-218,594.72

Finding the Fourth Proportional to 399,882.74, 551,836.91 and 218,594.72

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Solution

The fourth proportional to 399,882.74, 551,836.91 and 218,594.72 is: 301,660.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,882.74 : 551,836.91 = 218,594.72 : x
  2. Step 2: Convert to fraction form
    399,882.74/551,836.91 = 218,594.72/x
  3. Step 3: Cross multiply
    399,882.74x = 551,836.91 × 218,594.72
  4. Step 4: Simplify right side
    399,882.74x = 120,628,630,974.96
  5. Step 5: Solve for x
    x = 120,628,630,974.96/399,882.74
  6. Step 6: Final answer
    x = 301,660.01

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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.