Home / 255,398.06-352,449.43-142,220.81

Finding the Fourth Proportional to 255,398.06, 352,449.43 and 142,220.81

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Solution

The fourth proportional to 255,398.06, 352,449.43 and 142,220.81 is: 196,264.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,398.06 : 352,449.43 = 142,220.81 : x
  2. Step 2: Convert to fraction form
    255,398.06/352,449.43 = 142,220.81/x
  3. Step 3: Cross multiply
    255,398.06x = 352,449.43 × 142,220.81
  4. Step 4: Simplify right side
    255,398.06x = 50,125,643,944.21
  5. Step 5: Solve for x
    x = 50,125,643,944.21/255,398.06
  6. Step 6: Final answer
    x = 196,264.78

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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.