Home / 214,164.90-321,223.05-56,405.70

Finding the Fourth Proportional to 214,164.90, 321,223.05 and 56,405.70

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Solution

The fourth proportional to 214,164.90, 321,223.05 and 56,405.70 is: 84,602.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,164.90 : 321,223.05 = 56,405.70 : x
  2. Step 2: Convert to fraction form
    214,164.90/321,223.05 = 56,405.70/x
  3. Step 3: Cross multiply
    214,164.90x = 321,223.05 × 56,405.70
  4. Step 4: Simplify right side
    214,164.90x = 18,118,810,991.39
  5. Step 5: Solve for x
    x = 18,118,810,991.39/214,164.90
  6. Step 6: Final answer
    x = 84,602.15

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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.