Home / 214,420.10-321,224.17-143,127.77

Finding the Fourth Proportional to 214,420.10, 321,224.17 and 143,127.77

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Solution

The fourth proportional to 214,420.10, 321,224.17 and 143,127.77 is: 214,420.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,420.10 : 321,224.17 = 143,127.77 : x
  2. Step 2: Convert to fraction form
    214,420.10/321,224.17 = 143,127.77/x
  3. Step 3: Cross multiply
    214,420.10x = 321,224.17 × 143,127.77
  4. Step 4: Simplify right side
    214,420.10x = 45,976,097,516.08
  5. Step 5: Solve for x
    x = 45,976,097,516.08/214,420.10
  6. Step 6: Final answer
    x = 214,420.66

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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.