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Finding the Fourth Proportional to 257,369.13, 386,053.97 and 107,527.77

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Solution

The fourth proportional to 257,369.13, 386,053.97 and 107,527.77 is: 161,291.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,369.13 : 386,053.97 = 107,527.77 : x
  2. Step 2: Convert to fraction form
    257,369.13/386,053.97 = 107,527.77/x
  3. Step 3: Cross multiply
    257,369.13x = 386,053.97 × 107,527.77
  4. Step 4: Simplify right side
    257,369.13x = 41,511,521,956.11
  5. Step 5: Solve for x
    x = 41,511,521,956.11/257,369.13
  6. Step 6: Final answer
    x = 161,291.77

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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.