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Finding the Fourth Proportional to 290,183.40, 435,620.70 and 163,924.20

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Solution

The fourth proportional to 290,183.40, 435,620.70 and 163,924.20 is: 246,081.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,183.40 : 435,620.70 = 163,924.20 : x
  2. Step 2: Convert to fraction form
    290,183.40/435,620.70 = 163,924.20/x
  3. Step 3: Cross multiply
    290,183.40x = 435,620.70 × 163,924.20
  4. Step 4: Simplify right side
    290,183.40x = 71,408,774,750.94
  5. Step 5: Solve for x
    x = 71,408,774,750.94/290,183.40
  6. Step 6: Final answer
    x = 246,081.53

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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.