Home / 214,579.80-321,869.70-155,290.20

Finding the Fourth Proportional to 214,579.80, 321,869.70 and 155,290.20

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Solution

The fourth proportional to 214,579.80, 321,869.70 and 155,290.20 is: 232,935.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,579.80 : 321,869.70 = 155,290.20 : x
  2. Step 2: Convert to fraction form
    214,579.80/321,869.70 = 155,290.20/x
  3. Step 3: Cross multiply
    214,579.80x = 321,869.70 × 155,290.20
  4. Step 4: Simplify right side
    214,579.80x = 49,983,210,086.94
  5. Step 5: Solve for x
    x = 49,983,210,086.94/214,579.80
  6. Step 6: Final answer
    x = 232,935.30

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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.