Home / 813,178.22-1,219,827.24-214,135.22

Finding the Fourth Proportional to 813,178.22, 1,219,827.24 and 214,135.22

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Solution

The fourth proportional to 813,178.22, 1,219,827.24 and 214,135.22 is: 321,218.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,178.22 : 1,219,827.24 = 214,135.22 : x
  2. Step 2: Convert to fraction form
    813,178.22/1,219,827.24 = 214,135.22/x
  3. Step 3: Cross multiply
    813,178.22x = 1,219,827.24 × 214,135.22
  4. Step 4: Simplify right side
    813,178.22x = 261,207,977,448.96
  5. Step 5: Solve for x
    x = 261,207,977,448.96/813,178.22
  6. Step 6: Final answer
    x = 321,218.61

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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.