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Finding the Fourth Proportional to 215,353.63, 297,190.85 and 118,568.76

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Solution

The fourth proportional to 215,353.63, 297,190.85 and 118,568.76 is: 163,626.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,353.63 : 297,190.85 = 118,568.76 : x
  2. Step 2: Convert to fraction form
    215,353.63/297,190.85 = 118,568.76/x
  3. Step 3: Cross multiply
    215,353.63x = 297,190.85 × 118,568.76
  4. Step 4: Simplify right side
    215,353.63x = 35,237,550,567.85
  5. Step 5: Solve for x
    x = 35,237,550,567.85/215,353.63
  6. Step 6: Final answer
    x = 163,626.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.