Home / 212,205.57-318,308.42-54,433.99

Finding the Fourth Proportional to 212,205.57, 318,308.42 and 54,433.99

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Solution

The fourth proportional to 212,205.57, 318,308.42 and 54,433.99 is: 81,651.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,205.57 : 318,308.42 = 54,433.99 : x
  2. Step 2: Convert to fraction form
    212,205.57/318,308.42 = 54,433.99/x
  3. Step 3: Cross multiply
    212,205.57x = 318,308.42 × 54,433.99
  4. Step 4: Simplify right side
    212,205.57x = 17,326,797,351.20
  5. Step 5: Solve for x
    x = 17,326,797,351.20/212,205.57
  6. Step 6: Final answer
    x = 81,651.00

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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.