Home / 399,945.48-551,958.96-227,916.06

Finding the Fourth Proportional to 399,945.48, 551,958.96 and 227,916.06

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Solution

The fourth proportional to 399,945.48, 551,958.96 and 227,916.06 is: 314,543.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,945.48 : 551,958.96 = 227,916.06 : x
  2. Step 2: Convert to fraction form
    399,945.48/551,958.96 = 227,916.06/x
  3. Step 3: Cross multiply
    399,945.48x = 551,958.96 × 227,916.06
  4. Step 4: Simplify right side
    399,945.48x = 125,800,311,444.90
  5. Step 5: Solve for x
    x = 125,800,311,444.90/399,945.48
  6. Step 6: Final answer
    x = 314,543.65

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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.