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Finding the Fourth Proportional to 385,777.22, 579,039.83 and 186,238.02

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Solution

The fourth proportional to 385,777.22, 579,039.83 and 186,238.02 is: 279,537.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,777.22 : 579,039.83 = 186,238.02 : x
  2. Step 2: Convert to fraction form
    385,777.22/579,039.83 = 186,238.02/x
  3. Step 3: Cross multiply
    385,777.22x = 579,039.83 × 186,238.02
  4. Step 4: Simplify right side
    385,777.22x = 107,839,231,440.34
  5. Step 5: Solve for x
    x = 107,839,231,440.34/385,777.22
  6. Step 6: Final answer
    x = 279,537.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.