Home / 318,533.46-439,618.23-205,684.26

Finding the Fourth Proportional to 318,533.46, 439,618.23 and 205,684.26

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Solution

The fourth proportional to 318,533.46, 439,618.23 and 205,684.26 is: 283,871.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,533.46 : 439,618.23 = 205,684.26 : x
  2. Step 2: Convert to fraction form
    318,533.46/439,618.23 = 205,684.26/x
  3. Step 3: Cross multiply
    318,533.46x = 439,618.23 × 205,684.26
  4. Step 4: Simplify right side
    318,533.46x = 90,422,550,320.06
  5. Step 5: Solve for x
    x = 90,422,550,320.06/318,533.46
  6. Step 6: Final answer
    x = 283,871.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.