Home / 212,296.09-318,447.33-54,521.05

Finding the Fourth Proportional to 212,296.09, 318,447.33 and 54,521.05

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Solution

The fourth proportional to 212,296.09, 318,447.33 and 54,521.05 is: 81,782.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,296.09 : 318,447.33 = 54,521.05 : x
  2. Step 2: Convert to fraction form
    212,296.09/318,447.33 = 54,521.05/x
  3. Step 3: Cross multiply
    212,296.09x = 318,447.33 × 54,521.05
  4. Step 4: Simplify right side
    212,296.09x = 17,362,082,801.30
  5. Step 5: Solve for x
    x = 17,362,082,801.30/212,296.09
  6. Step 6: Final answer
    x = 81,782.40

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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.