Home / 328,849.48-493,274.46-79,531.72

Finding the Fourth Proportional to 328,849.48, 493,274.46 and 79,531.72

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Solution

The fourth proportional to 328,849.48, 493,274.46 and 79,531.72 is: 119,297.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,849.48 : 493,274.46 = 79,531.72 : x
  2. Step 2: Convert to fraction form
    328,849.48/493,274.46 = 79,531.72/x
  3. Step 3: Cross multiply
    328,849.48x = 493,274.46 × 79,531.72
  4. Step 4: Simplify right side
    328,849.48x = 39,230,966,235.87
  5. Step 5: Solve for x
    x = 39,230,966,235.87/328,849.48
  6. Step 6: Final answer
    x = 119,297.64

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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.