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Finding the Fourth Proportional to 300,777.42, 415,045.26 and 173,428.44

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Solution

The fourth proportional to 300,777.42, 415,045.26 and 173,428.44 is: 239,315.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,777.42 : 415,045.26 = 173,428.44 : x
  2. Step 2: Convert to fraction form
    300,777.42/415,045.26 = 173,428.44/x
  3. Step 3: Cross multiply
    300,777.42x = 415,045.26 × 173,428.44
  4. Step 4: Simplify right side
    300,777.42x = 71,980,651,971.19
  5. Step 5: Solve for x
    x = 71,980,651,971.19/300,777.42
  6. Step 6: Final answer
    x = 239,315.34

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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.