Home / 399,317.51-551,072.03-227,261.43

Finding the Fourth Proportional to 399,317.51, 551,072.03 and 227,261.43

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Solution

The fourth proportional to 399,317.51, 551,072.03 and 227,261.43 is: 313,628.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,317.51 : 551,072.03 = 227,261.43 : x
  2. Step 2: Convert to fraction form
    399,317.51/551,072.03 = 227,261.43/x
  3. Step 3: Cross multiply
    399,317.51x = 551,072.03 × 227,261.43
  4. Step 4: Simplify right side
    399,317.51x = 125,237,416,434.50
  5. Step 5: Solve for x
    x = 125,237,416,434.50/399,317.51
  6. Step 6: Final answer
    x = 313,628.66

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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.