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Finding the Fourth Proportional to 180,489.72, 270,438.66 and 127,804.62

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Solution

The fourth proportional to 180,489.72, 270,438.66 and 127,804.62 is: 191,497.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,489.72 : 270,438.66 = 127,804.62 : x
  2. Step 2: Convert to fraction form
    180,489.72/270,438.66 = 127,804.62/x
  3. Step 3: Cross multiply
    180,489.72x = 270,438.66 × 127,804.62
  4. Step 4: Simplify right side
    180,489.72x = 34,563,310,174.61
  5. Step 5: Solve for x
    x = 34,563,310,174.61/180,489.72
  6. Step 6: Final answer
    x = 191,497.39

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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.