Home / 355,111.60-531,976.20-214,452.40

Finding the Fourth Proportional to 355,111.60, 531,976.20 and 214,452.40

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Solution

The fourth proportional to 355,111.60, 531,976.20 and 214,452.40 is: 321,261.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,111.60 : 531,976.20 = 214,452.40 : x
  2. Step 2: Convert to fraction form
    355,111.60/531,976.20 = 214,452.40/x
  3. Step 3: Cross multiply
    355,111.60x = 531,976.20 × 214,452.40
  4. Step 4: Simplify right side
    355,111.60x = 114,083,572,832.88
  5. Step 5: Solve for x
    x = 114,083,572,832.88/355,111.60
  6. Step 6: Final answer
    x = 321,261.18

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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.