Home / 231,969.40-320,271.96-178,158.25

Finding the Fourth Proportional to 231,969.40, 320,271.96 and 178,158.25

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Solution

The fourth proportional to 231,969.40, 320,271.96 and 178,158.25 is: 245,976.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,969.40 : 320,271.96 = 178,158.25 : x
  2. Step 2: Convert to fraction form
    231,969.40/320,271.96 = 178,158.25/x
  3. Step 3: Cross multiply
    231,969.40x = 320,271.96 × 178,158.25
  4. Step 4: Simplify right side
    231,969.40x = 57,059,091,917.67
  5. Step 5: Solve for x
    x = 57,059,091,917.67/231,969.40
  6. Step 6: Final answer
    x = 245,976.81

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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.