Home / 255,352.38-352,388.73-142,177.56

Finding the Fourth Proportional to 255,352.38, 352,388.73 and 142,177.56

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Solution

The fourth proportional to 255,352.38, 352,388.73 and 142,177.56 is: 196,206.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,352.38 : 352,388.73 = 142,177.56 : x
  2. Step 2: Convert to fraction form
    255,352.38/352,388.73 = 142,177.56/x
  3. Step 3: Cross multiply
    255,352.38x = 352,388.73 × 142,177.56
  4. Step 4: Simplify right side
    255,352.38x = 50,101,769,802.90
  5. Step 5: Solve for x
    x = 50,101,769,802.90/255,352.38
  6. Step 6: Final answer
    x = 196,206.39

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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.