Home / 231,913.10-320,193.60-178,101.56

Finding the Fourth Proportional to 231,913.10, 320,193.60 and 178,101.56

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Solution

The fourth proportional to 231,913.10, 320,193.60 and 178,101.56 is: 245,898.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,913.10 : 320,193.60 = 178,101.56 : x
  2. Step 2: Convert to fraction form
    231,913.10/320,193.60 = 178,101.56/x
  3. Step 3: Cross multiply
    231,913.10x = 320,193.60 × 178,101.56
  4. Step 4: Simplify right side
    231,913.10x = 57,026,979,662.02
  5. Step 5: Solve for x
    x = 57,026,979,662.02/231,913.10
  6. Step 6: Final answer
    x = 245,898.05

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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.