Home / 385,659.68-578,268.03-205,523.33

Finding the Fourth Proportional to 385,659.68, 578,268.03 and 205,523.33

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Solution

The fourth proportional to 385,659.68, 578,268.03 and 205,523.33 is: 308,166.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,659.68 : 578,268.03 = 205,523.33 : x
  2. Step 2: Convert to fraction form
    385,659.68/578,268.03 = 205,523.33/x
  3. Step 3: Cross multiply
    385,659.68x = 578,268.03 × 205,523.33
  4. Step 4: Simplify right side
    385,659.68x = 118,847,567,881.44
  5. Step 5: Solve for x
    x = 118,847,567,881.44/385,659.68
  6. Step 6: Final answer
    x = 308,166.95

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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.