Home / 403,489.10-605,087.85-163,502.30

Finding the Fourth Proportional to 403,489.10, 605,087.85 and 163,502.30

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Solution

The fourth proportional to 403,489.10, 605,087.85 and 163,502.30 is: 245,194.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,489.10 : 605,087.85 = 163,502.30 : x
  2. Step 2: Convert to fraction form
    403,489.10/605,087.85 = 163,502.30/x
  3. Step 3: Cross multiply
    403,489.10x = 605,087.85 × 163,502.30
  4. Step 4: Simplify right side
    403,489.10x = 98,933,255,177.06
  5. Step 5: Solve for x
    x = 98,933,255,177.06/403,489.10
  6. Step 6: Final answer
    x = 245,194.37

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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.