Home / 328,875.20-493,257.16-92,163.40

Finding the Fourth Proportional to 328,875.20, 493,257.16 and 92,163.40

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Solution

The fourth proportional to 328,875.20, 493,257.16 and 92,163.40 is: 138,229.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,875.20 : 493,257.16 = 92,163.40 : x
  2. Step 2: Convert to fraction form
    328,875.20/493,257.16 = 92,163.40/x
  3. Step 3: Cross multiply
    328,875.20x = 493,257.16 × 92,163.40
  4. Step 4: Simplify right side
    328,875.20x = 45,460,256,939.94
  5. Step 5: Solve for x
    x = 45,460,256,939.94/328,875.20
  6. Step 6: Final answer
    x = 138,229.51

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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.