Home / 212,400.42-318,524.73-70,219.44

Finding the Fourth Proportional to 212,400.42, 318,524.73 and 70,219.44

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Solution

The fourth proportional to 212,400.42, 318,524.73 and 70,219.44 is: 105,304.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,400.42 : 318,524.73 = 70,219.44 : x
  2. Step 2: Convert to fraction form
    212,400.42/318,524.73 = 70,219.44/x
  3. Step 3: Cross multiply
    212,400.42x = 318,524.73 × 70,219.44
  4. Step 4: Simplify right side
    212,400.42x = 22,366,628,166.75
  5. Step 5: Solve for x
    x = 22,366,628,166.75/212,400.42
  6. Step 6: Final answer
    x = 105,304.07

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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.