Home / 245,173.50-338,343.87-136,288.02

Finding the Fourth Proportional to 245,173.50, 338,343.87 and 136,288.02

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Solution

The fourth proportional to 245,173.50, 338,343.87 and 136,288.02 is: 188,079.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,173.50 : 338,343.87 = 136,288.02 : x
  2. Step 2: Convert to fraction form
    245,173.50/338,343.87 = 136,288.02/x
  3. Step 3: Cross multiply
    245,173.50x = 338,343.87 × 136,288.02
  4. Step 4: Simplify right side
    245,173.50x = 46,112,216,121.44
  5. Step 5: Solve for x
    x = 46,112,216,121.44/245,173.50
  6. Step 6: Final answer
    x = 188,079.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.