Home / 399,736.27-551,637.50-218,450.98

Finding the Fourth Proportional to 399,736.27, 551,637.50 and 218,450.98

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Solution

The fourth proportional to 399,736.27, 551,637.50 and 218,450.98 is: 301,463.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,736.27 : 551,637.50 = 218,450.98 : x
  2. Step 2: Convert to fraction form
    399,736.27/551,637.50 = 218,450.98/x
  3. Step 3: Cross multiply
    399,736.27x = 551,637.50 × 218,450.98
  4. Step 4: Simplify right side
    399,736.27x = 120,505,750,008.40
  5. Step 5: Solve for x
    x = 120,505,750,008.40/399,736.27
  6. Step 6: Final answer
    x = 301,463.14

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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.