Home / 255,318.95-352,340.67-142,145.75

Finding the Fourth Proportional to 255,318.95, 352,340.67 and 142,145.75

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Solution

The fourth proportional to 255,318.95, 352,340.67 and 142,145.75 is: 196,161.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,318.95 : 352,340.67 = 142,145.75 : x
  2. Step 2: Convert to fraction form
    255,318.95/352,340.67 = 142,145.75/x
  3. Step 3: Cross multiply
    255,318.95x = 352,340.67 × 142,145.75
  4. Step 4: Simplify right side
    255,318.95x = 50,083,727,030.95
  5. Step 5: Solve for x
    x = 50,083,727,030.95/255,318.95
  6. Step 6: Final answer
    x = 196,161.42

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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.