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Finding the Fourth Proportional to 318,268.71, 439,200.77 and 175,028.31

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Solution

The fourth proportional to 318,268.71, 439,200.77 and 175,028.31 is: 241,533.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,268.71 : 439,200.77 = 175,028.31 : x
  2. Step 2: Convert to fraction form
    318,268.71/439,200.77 = 175,028.31/x
  3. Step 3: Cross multiply
    318,268.71x = 439,200.77 × 175,028.31
  4. Step 4: Simplify right side
    318,268.71x = 76,872,567,648.66
  5. Step 5: Solve for x
    x = 76,872,567,648.66/318,268.71
  6. Step 6: Final answer
    x = 241,533.54

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1.5x scale

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.