Home / 368,390.72-552,586.08-131,719.04

Finding the Fourth Proportional to 368,390.72, 552,586.08 and 131,719.04

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Solution

The fourth proportional to 368,390.72, 552,586.08 and 131,719.04 is: 197,578.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,390.72 : 552,586.08 = 131,719.04 : x
  2. Step 2: Convert to fraction form
    368,390.72/552,586.08 = 131,719.04/x
  3. Step 3: Cross multiply
    368,390.72x = 552,586.08 × 131,719.04
  4. Step 4: Simplify right side
    368,390.72x = 72,786,109,775.09
  5. Step 5: Solve for x
    x = 72,786,109,775.09/368,390.72
  6. Step 6: Final answer
    x = 197,578.57

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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.