Home / 212,361.35-318,597.57-79,242.77

Finding the Fourth Proportional to 212,361.35, 318,597.57 and 79,242.77

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Solution

The fourth proportional to 212,361.35, 318,597.57 and 79,242.77 is: 118,884.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,361.35 : 318,597.57 = 79,242.77 : x
  2. Step 2: Convert to fraction form
    212,361.35/318,597.57 = 79,242.77/x
  3. Step 3: Cross multiply
    212,361.35x = 318,597.57 × 79,242.77
  4. Step 4: Simplify right side
    212,361.35x = 25,246,554,758.56
  5. Step 5: Solve for x
    x = 25,246,554,758.56/212,361.35
  6. Step 6: Final answer
    x = 118,884.89

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1.5x scale

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.