Home / 265,921.60-398,541.12-116,121.28

Finding the Fourth Proportional to 265,921.60, 398,541.12 and 116,121.28

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Solution

The fourth proportional to 265,921.60, 398,541.12 and 116,121.28 is: 174,032.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,921.60 : 398,541.12 = 116,121.28 : x
  2. Step 2: Convert to fraction form
    265,921.60/398,541.12 = 116,121.28/x
  3. Step 3: Cross multiply
    265,921.60x = 398,541.12 × 116,121.28
  4. Step 4: Simplify right side
    265,921.60x = 46,279,104,987.03
  5. Step 5: Solve for x
    x = 46,279,104,987.03/265,921.60
  6. Step 6: Final answer
    x = 174,032.89

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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.