Home / 353,111.60-528,976.20-212,452.40

Finding the Fourth Proportional to 353,111.60, 528,976.20 and 212,452.40

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Solution

The fourth proportional to 353,111.60, 528,976.20 and 212,452.40 is: 318,262.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,111.60 : 528,976.20 = 212,452.40 : x
  2. Step 2: Convert to fraction form
    353,111.60/528,976.20 = 212,452.40/x
  3. Step 3: Cross multiply
    353,111.60x = 528,976.20 × 212,452.40
  4. Step 4: Simplify right side
    353,111.60x = 112,382,263,232.88
  5. Step 5: Solve for x
    x = 112,382,263,232.88/353,111.60
  6. Step 6: Final answer
    x = 318,262.73

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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.