Home / 268,046.20-401,510.40-126,012.70

Finding the Fourth Proportional to 268,046.20, 401,510.40 and 126,012.70

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Solution

The fourth proportional to 268,046.20, 401,510.40 and 126,012.70 is: 188,756.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,046.20 : 401,510.40 = 126,012.70 : x
  2. Step 2: Convert to fraction form
    268,046.20/401,510.40 = 126,012.70/x
  3. Step 3: Cross multiply
    268,046.20x = 401,510.40 × 126,012.70
  4. Step 4: Simplify right side
    268,046.20x = 50,595,409,582.08
  5. Step 5: Solve for x
    x = 50,595,409,582.08/268,046.20
  6. Step 6: Final answer
    x = 188,756.30

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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.