Home / 399,436.08-551,225.52-227,345.61

Finding the Fourth Proportional to 399,436.08, 551,225.52 and 227,345.61

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Solution

The fourth proportional to 399,436.08, 551,225.52 and 227,345.61 is: 313,739.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,436.08 : 551,225.52 = 227,345.61 : x
  2. Step 2: Convert to fraction form
    399,436.08/551,225.52 = 227,345.61/x
  3. Step 3: Cross multiply
    399,436.08x = 551,225.52 × 227,345.61
  4. Step 4: Simplify right side
    399,436.08x = 125,318,702,091.97
  5. Step 5: Solve for x
    x = 125,318,702,091.97/399,436.08
  6. Step 6: Final answer
    x = 313,739.06

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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.