Home / 399,579.30-551,410.26-218,292

Finding the Fourth Proportional to 399,579.30, 551,410.26 and 218,292

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Solution

The fourth proportional to 399,579.30, 551,410.26 and 218,292 is: 301,237.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,579.30 : 551,410.26 = 218,292 : x
  2. Step 2: Convert to fraction form
    399,579.30/551,410.26 = 218,292/x
  3. Step 3: Cross multiply
    399,579.30x = 551,410.26 × 218,292
  4. Step 4: Simplify right side
    399,579.30x = 120,368,448,475.92
  5. Step 5: Solve for x
    x = 120,368,448,475.92/399,579.30
  6. Step 6: Final answer
    x = 301,237.95

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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.