Home / 212,579.40-318,781.62-168,314.52

Finding the Fourth Proportional to 212,579.40, 318,781.62 and 168,314.52

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Solution

The fourth proportional to 212,579.40, 318,781.62 and 168,314.52 is: 252,402.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,579.40 : 318,781.62 = 168,314.52 : x
  2. Step 2: Convert to fraction form
    212,579.40/318,781.62 = 168,314.52/x
  3. Step 3: Cross multiply
    212,579.40x = 318,781.62 × 168,314.52
  4. Step 4: Simplify right side
    212,579.40x = 53,655,575,355.12
  5. Step 5: Solve for x
    x = 53,655,575,355.12/212,579.40
  6. Step 6: Final answer
    x = 252,402.52

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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.