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Finding the Fourth Proportional to 436,408.20, 654,482.70 and 170,015.40

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Solution

The fourth proportional to 436,408.20, 654,482.70 and 170,015.40 is: 254,972.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,408.20 : 654,482.70 = 170,015.40 : x
  2. Step 2: Convert to fraction form
    436,408.20/654,482.70 = 170,015.40/x
  3. Step 3: Cross multiply
    436,408.20x = 654,482.70 × 170,015.40
  4. Step 4: Simplify right side
    436,408.20x = 111,272,138,033.58
  5. Step 5: Solve for x
    x = 111,272,138,033.58/436,408.20
  6. Step 6: Final answer
    x = 254,972.61

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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.