Home / 255,430.97-352,505.68-142,253.72

Finding the Fourth Proportional to 255,430.97, 352,505.68 and 142,253.72

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Solution

The fourth proportional to 255,430.97, 352,505.68 and 142,253.72 is: 196,316.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,430.97 : 352,505.68 = 142,253.72 : x
  2. Step 2: Convert to fraction form
    255,430.97/352,505.68 = 142,253.72/x
  3. Step 3: Cross multiply
    255,430.97x = 352,505.68 × 142,253.72
  4. Step 4: Simplify right side
    255,430.97x = 50,145,243,589.86
  5. Step 5: Solve for x
    x = 50,145,243,589.86/255,430.97
  6. Step 6: Final answer
    x = 196,316.22

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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.