Home / 318,844.81-439,973.27-196,317.73

Finding the Fourth Proportional to 318,844.81, 439,973.27 and 196,317.73

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Solution

The fourth proportional to 318,844.81, 439,973.27 and 196,317.73 is: 270,898.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,844.81 : 439,973.27 = 196,317.73 : x
  2. Step 2: Convert to fraction form
    318,844.81/439,973.27 = 196,317.73/x
  3. Step 3: Cross multiply
    318,844.81x = 439,973.27 × 196,317.73
  4. Step 4: Simplify right side
    318,844.81x = 86,374,553,017.94
  5. Step 5: Solve for x
    x = 86,374,553,017.94/318,844.81
  6. Step 6: Final answer
    x = 270,898.42

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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.