Home / 212,822.40-318,796.20-146,337.60

Finding the Fourth Proportional to 212,822.40, 318,796.20 and 146,337.60

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Solution

The fourth proportional to 212,822.40, 318,796.20 and 146,337.60 is: 219,205.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,822.40 : 318,796.20 = 146,337.60 : x
  2. Step 2: Convert to fraction form
    212,822.40/318,796.20 = 146,337.60/x
  3. Step 3: Cross multiply
    212,822.40x = 318,796.20 × 146,337.60
  4. Step 4: Simplify right side
    212,822.40x = 46,651,870,797.12
  5. Step 5: Solve for x
    x = 46,651,870,797.12/212,822.40
  6. Step 6: Final answer
    x = 219,205.64

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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.