Home / 346,789.20-520,054.20-136,383.60

Finding the Fourth Proportional to 346,789.20, 520,054.20 and 136,383.60

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Solution

The fourth proportional to 346,789.20, 520,054.20 and 136,383.60 is: 204,524.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,789.20 : 520,054.20 = 136,383.60 : x
  2. Step 2: Convert to fraction form
    346,789.20/520,054.20 = 136,383.60/x
  3. Step 3: Cross multiply
    346,789.20x = 520,054.20 × 136,383.60
  4. Step 4: Simplify right side
    346,789.20x = 70,926,863,991.12
  5. Step 5: Solve for x
    x = 70,926,863,991.12/346,789.20
  6. Step 6: Final answer
    x = 204,524.43

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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.