Home / 215,525.80-323,634.30-145,714.60

Finding the Fourth Proportional to 215,525.80, 323,634.30 and 145,714.60

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Solution

The fourth proportional to 215,525.80, 323,634.30 and 145,714.60 is: 218,805.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,525.80 : 323,634.30 = 145,714.60 : x
  2. Step 2: Convert to fraction form
    215,525.80/323,634.30 = 145,714.60/x
  3. Step 3: Cross multiply
    215,525.80x = 323,634.30 × 145,714.60
  4. Step 4: Simplify right side
    215,525.80x = 47,158,242,570.78
  5. Step 5: Solve for x
    x = 47,158,242,570.78/215,525.80
  6. Step 6: Final answer
    x = 218,805.56

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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.