Home / 313,948.40-471,181.80-145,727.60

Finding the Fourth Proportional to 313,948.40, 471,181.80 and 145,727.60

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Solution

The fourth proportional to 313,948.40, 471,181.80 and 145,727.60 is: 218,711.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,948.40 : 471,181.80 = 145,727.60 : x
  2. Step 2: Convert to fraction form
    313,948.40/471,181.80 = 145,727.60/x
  3. Step 3: Cross multiply
    313,948.40x = 471,181.80 × 145,727.60
  4. Step 4: Simplify right side
    313,948.40x = 68,664,192,877.68
  5. Step 5: Solve for x
    x = 68,664,192,877.68/313,948.40
  6. Step 6: Final answer
    x = 218,711.71

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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.