Home / 403,619.60-604,997.40-137,133.20

Finding the Fourth Proportional to 403,619.60, 604,997.40 and 137,133.20

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Solution

The fourth proportional to 403,619.60, 604,997.40 and 137,133.20 is: 205,553.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,619.60 : 604,997.40 = 137,133.20 : x
  2. Step 2: Convert to fraction form
    403,619.60/604,997.40 = 137,133.20/x
  3. Step 3: Cross multiply
    403,619.60x = 604,997.40 × 137,133.20
  4. Step 4: Simplify right side
    403,619.60x = 82,965,229,453.68
  5. Step 5: Solve for x
    x = 82,965,229,453.68/403,619.60
  6. Step 6: Final answer
    x = 205,553.02

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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.