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Finding the Fourth Proportional to 243,780.80, 365,525.40 and 125,682.80

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Solution

The fourth proportional to 243,780.80, 365,525.40 and 125,682.80 is: 188,449.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,780.80 : 365,525.40 = 125,682.80 : x
  2. Step 2: Convert to fraction form
    243,780.80/365,525.40 = 125,682.80/x
  3. Step 3: Cross multiply
    243,780.80x = 365,525.40 × 125,682.80
  4. Step 4: Simplify right side
    243,780.80x = 45,940,255,743.12
  5. Step 5: Solve for x
    x = 45,940,255,743.12/243,780.80
  6. Step 6: Final answer
    x = 188,449.03

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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.