Home / 214,237.80-321,356.70-135,700.20

Finding the Fourth Proportional to 214,237.80, 321,356.70 and 135,700.20

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Solution

The fourth proportional to 214,237.80, 321,356.70 and 135,700.20 is: 203,550.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,237.80 : 321,356.70 = 135,700.20 : x
  2. Step 2: Convert to fraction form
    214,237.80/321,356.70 = 135,700.20/x
  3. Step 3: Cross multiply
    214,237.80x = 321,356.70 × 135,700.20
  4. Step 4: Simplify right side
    214,237.80x = 43,608,168,461.34
  5. Step 5: Solve for x
    x = 43,608,168,461.34/214,237.80
  6. Step 6: Final answer
    x = 203,550.30

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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.