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Finding the Fourth Proportional to 174,642.72, 261,980.88 and 69,438.24

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Solution

The fourth proportional to 174,642.72, 261,980.88 and 69,438.24 is: 104,164.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,642.72 : 261,980.88 = 69,438.24 : x
  2. Step 2: Convert to fraction form
    174,642.72/261,980.88 = 69,438.24/x
  3. Step 3: Cross multiply
    174,642.72x = 261,980.88 × 69,438.24
  4. Step 4: Simplify right side
    174,642.72x = 18,191,491,220.85
  5. Step 5: Solve for x
    x = 18,191,491,220.85/174,642.72
  6. Step 6: Final answer
    x = 104,164.04

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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.