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Finding the Fourth Proportional to 263,462.64, 395,256.96 and 85,970.04

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Solution

The fourth proportional to 263,462.64, 395,256.96 and 85,970.04 is: 128,975.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,462.64 : 395,256.96 = 85,970.04 : x
  2. Step 2: Convert to fraction form
    263,462.64/395,256.96 = 85,970.04/x
  3. Step 3: Cross multiply
    263,462.64x = 395,256.96 × 85,970.04
  4. Step 4: Simplify right side
    263,462.64x = 33,980,256,661.48
  5. Step 5: Solve for x
    x = 33,980,256,661.48/263,462.64
  6. Step 6: Final answer
    x = 128,975.62

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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.