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Finding the Fourth Proportional to 248,491.08, 372,622.41 and 79,980.30

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Solution

The fourth proportional to 248,491.08, 372,622.41 and 79,980.30 is: 119,933.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,491.08 : 372,622.41 = 79,980.30 : x
  2. Step 2: Convert to fraction form
    248,491.08/372,622.41 = 79,980.30/x
  3. Step 3: Cross multiply
    248,491.08x = 372,622.41 × 79,980.30
  4. Step 4: Simplify right side
    248,491.08x = 29,802,452,138.52
  5. Step 5: Solve for x
    x = 29,802,452,138.52/248,491.08
  6. Step 6: Final answer
    x = 119,933.69

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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.