Home / 255,436.45-352,502.31-142,259.20

Finding the Fourth Proportional to 255,436.45, 352,502.31 and 142,259.20

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Solution

The fourth proportional to 255,436.45, 352,502.31 and 142,259.20 is: 196,317.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,436.45 : 352,502.31 = 142,259.20 : x
  2. Step 2: Convert to fraction form
    255,436.45/352,502.31 = 142,259.20/x
  3. Step 3: Cross multiply
    255,436.45x = 352,502.31 × 142,259.20
  4. Step 4: Simplify right side
    255,436.45x = 50,146,698,253.79
  5. Step 5: Solve for x
    x = 50,146,698,253.79/255,436.45
  6. Step 6: Final answer
    x = 196,317.71

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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.