Home / 399,926.52-551,898.90-218,635.56

Finding the Fourth Proportional to 399,926.52, 551,898.90 and 218,635.56

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Solution

The fourth proportional to 399,926.52, 551,898.90 and 218,635.56 is: 301,717.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,926.52 : 551,898.90 = 218,635.56 : x
  2. Step 2: Convert to fraction form
    399,926.52/551,898.90 = 218,635.56/x
  3. Step 3: Cross multiply
    399,926.52x = 551,898.90 × 218,635.56
  4. Step 4: Simplify right side
    399,926.52x = 120,664,725,064.88
  5. Step 5: Solve for x
    x = 120,664,725,064.88/399,926.52
  6. Step 6: Final answer
    x = 301,717.24

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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.