Home / 255,287.80-352,287.66-142,108.12

Finding the Fourth Proportional to 255,287.80, 352,287.66 and 142,108.12

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Solution

The fourth proportional to 255,287.80, 352,287.66 and 142,108.12 is: 196,103.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,287.80 : 352,287.66 = 142,108.12 : x
  2. Step 2: Convert to fraction form
    255,287.80/352,287.66 = 142,108.12/x
  3. Step 3: Cross multiply
    255,287.80x = 352,287.66 × 142,108.12
  4. Step 4: Simplify right side
    255,287.80x = 50,062,937,061.80
  5. Step 5: Solve for x
    x = 50,062,937,061.80/255,287.80
  6. Step 6: Final answer
    x = 196,103.92

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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.