Home / 255,328.31-352,331.29-142,161.59

Finding the Fourth Proportional to 255,328.31, 352,331.29 and 142,161.59

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Solution

The fourth proportional to 255,328.31, 352,331.29 and 142,161.59 is: 196,170.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,328.31 : 352,331.29 = 142,161.59 : x
  2. Step 2: Convert to fraction form
    255,328.31/352,331.29 = 142,161.59/x
  3. Step 3: Cross multiply
    255,328.31x = 352,331.29 × 142,161.59
  4. Step 4: Simplify right side
    255,328.31x = 50,087,976,393.15
  5. Step 5: Solve for x
    x = 50,087,976,393.15/255,328.31
  6. Step 6: Final answer
    x = 196,170.87

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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.