Home / 212,350.80-318,491.32-79,196.24

Finding the Fourth Proportional to 212,350.80, 318,491.32 and 79,196.24

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Solution

The fourth proportional to 212,350.80, 318,491.32 and 79,196.24 is: 118,781.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,350.80 : 318,491.32 = 79,196.24 : x
  2. Step 2: Convert to fraction form
    212,350.80/318,491.32 = 79,196.24/x
  3. Step 3: Cross multiply
    212,350.80x = 318,491.32 × 79,196.24
  4. Step 4: Simplify right side
    212,350.80x = 25,223,315,016.64
  5. Step 5: Solve for x
    x = 25,223,315,016.64/212,350.80
  6. Step 6: Final answer
    x = 118,781.35

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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.