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Finding the Fourth Proportional to 436,851.95, 655,371.41 and 247,401.86

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Solution

The fourth proportional to 436,851.95, 655,371.41 and 247,401.86 is: 371,155.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,851.95 : 655,371.41 = 247,401.86 : x
  2. Step 2: Convert to fraction form
    436,851.95/655,371.41 = 247,401.86/x
  3. Step 3: Cross multiply
    436,851.95x = 655,371.41 × 247,401.86
  4. Step 4: Simplify right side
    436,851.95x = 162,140,101,310.96
  5. Step 5: Solve for x
    x = 162,140,101,310.96/436,851.95
  6. Step 6: Final answer
    x = 371,155.73

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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.