Home / 403,588.20-605,382.30-190,306.48

Finding the Fourth Proportional to 403,588.20, 605,382.30 and 190,306.48

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Solution

The fourth proportional to 403,588.20, 605,382.30 and 190,306.48 is: 285,459.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,588.20 : 605,382.30 = 190,306.48 : x
  2. Step 2: Convert to fraction form
    403,588.20/605,382.30 = 190,306.48/x
  3. Step 3: Cross multiply
    403,588.20x = 605,382.30 × 190,306.48
  4. Step 4: Simplify right side
    403,588.20x = 115,208,174,567.30
  5. Step 5: Solve for x
    x = 115,208,174,567.30/403,588.20
  6. Step 6: Final answer
    x = 285,459.72

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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.