Home / 328,849.86-493,275.06-79,531.86

Finding the Fourth Proportional to 328,849.86, 493,275.06 and 79,531.86

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Solution

The fourth proportional to 328,849.86, 493,275.06 and 79,531.86 is: 119,297.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,849.86 : 493,275.06 = 79,531.86 : x
  2. Step 2: Convert to fraction form
    328,849.86/493,275.06 = 79,531.86/x
  3. Step 3: Cross multiply
    328,849.86x = 493,275.06 × 79,531.86
  4. Step 4: Simplify right side
    328,849.86x = 39,231,083,013.41
  5. Step 5: Solve for x
    x = 39,231,083,013.41/328,849.86
  6. Step 6: Final answer
    x = 119,297.86

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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.