Home / 551,143.86-826,899.75-214,195.20

Finding the Fourth Proportional to 551,143.86, 826,899.75 and 214,195.20

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Solution

The fourth proportional to 551,143.86, 826,899.75 and 214,195.20 is: 321,364.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,143.86 : 826,899.75 = 214,195.20 : x
  2. Step 2: Convert to fraction form
    551,143.86/826,899.75 = 214,195.20/x
  3. Step 3: Cross multiply
    551,143.86x = 826,899.75 × 214,195.20
  4. Step 4: Simplify right side
    551,143.86x = 177,117,957,331.20
  5. Step 5: Solve for x
    x = 177,117,957,331.20/551,143.86
  6. Step 6: Final answer
    x = 321,364.29

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1.5x scale

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.