Home / 427,600.72-641,297.40-178,146.64

Finding the Fourth Proportional to 427,600.72, 641,297.40 and 178,146.64

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Solution

The fourth proportional to 427,600.72, 641,297.40 and 178,146.64 is: 267,176.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,600.72 : 641,297.40 = 178,146.64 : x
  2. Step 2: Convert to fraction form
    427,600.72/641,297.40 = 178,146.64/x
  3. Step 3: Cross multiply
    427,600.72x = 641,297.40 × 178,146.64
  4. Step 4: Simplify right side
    427,600.72x = 114,244,977,050.74
  5. Step 5: Solve for x
    x = 114,244,977,050.74/427,600.72
  6. Step 6: Final answer
    x = 267,176.76

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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.