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Finding the Fourth Proportional to 253,385.56, 380,169.90 and 118,568.44

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Solution

The fourth proportional to 253,385.56, 380,169.90 and 118,568.44 is: 177,895.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,385.56 : 380,169.90 = 118,568.44 : x
  2. Step 2: Convert to fraction form
    253,385.56/380,169.90 = 118,568.44/x
  3. Step 3: Cross multiply
    253,385.56x = 380,169.90 × 118,568.44
  4. Step 4: Simplify right side
    253,385.56x = 45,076,151,977.96
  5. Step 5: Solve for x
    x = 45,076,151,977.96/253,385.56
  6. Step 6: Final answer
    x = 177,895.50

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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.