Home / 220,899.20-331,521.60-102,585.20

Finding the Fourth Proportional to 220,899.20, 331,521.60 and 102,585.20

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Solution

The fourth proportional to 220,899.20, 331,521.60 and 102,585.20 is: 153,958.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,899.20 : 331,521.60 = 102,585.20 : x
  2. Step 2: Convert to fraction form
    220,899.20/331,521.60 = 102,585.20/x
  3. Step 3: Cross multiply
    220,899.20x = 331,521.60 × 102,585.20
  4. Step 4: Simplify right side
    220,899.20x = 34,009,209,640.32
  5. Step 5: Solve for x
    x = 34,009,209,640.32/220,899.20
  6. Step 6: Final answer
    x = 153,958.05

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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.