Home / 231,971.90-320,275.41-178,160.75

Finding the Fourth Proportional to 231,971.90, 320,275.41 and 178,160.75

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Solution

The fourth proportional to 231,971.90, 320,275.41 and 178,160.75 is: 245,980.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,971.90 : 320,275.41 = 178,160.75 : x
  2. Step 2: Convert to fraction form
    231,971.90/320,275.41 = 178,160.75/x
  3. Step 3: Cross multiply
    231,971.90x = 320,275.41 × 178,160.75
  4. Step 4: Simplify right side
    231,971.90x = 57,060,507,252.16
  5. Step 5: Solve for x
    x = 57,060,507,252.16/231,971.90
  6. Step 6: Final answer
    x = 245,980.26

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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.