Home / 230,769.20-346,348.20-90,628.40

Finding the Fourth Proportional to 230,769.20, 346,348.20 and 90,628.40

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Solution

The fourth proportional to 230,769.20, 346,348.20 and 90,628.40 is: 136,018.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,769.20 : 346,348.20 = 90,628.40 : x
  2. Step 2: Convert to fraction form
    230,769.20/346,348.20 = 90,628.40/x
  3. Step 3: Cross multiply
    230,769.20x = 346,348.20 × 90,628.40
  4. Step 4: Simplify right side
    230,769.20x = 31,388,983,208.88
  5. Step 5: Solve for x
    x = 31,388,983,208.88/230,769.20
  6. Step 6: Final answer
    x = 136,018.95

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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.