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Finding the Fourth Proportional to 155,626, 233,453.64 and 120,604.84

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Solution

The fourth proportional to 155,626, 233,453.64 and 120,604.84 is: 180,918.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,626 : 233,453.64 = 120,604.84 : x
  2. Step 2: Convert to fraction form
    155,626/233,453.64 = 120,604.84/x
  3. Step 3: Cross multiply
    155,626x = 233,453.64 × 120,604.84
  4. Step 4: Simplify right side
    155,626x = 28,155,638,899.62
  5. Step 5: Solve for x
    x = 28,155,638,899.62/155,626
  6. Step 6: Final answer
    x = 180,918.61

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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.