Home / 257,150.56-354,865.44-143,975.20

Finding the Fourth Proportional to 257,150.56, 354,865.44 and 143,975.20

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Solution

The fourth proportional to 257,150.56, 354,865.44 and 143,975.20 is: 198,684.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,150.56 : 354,865.44 = 143,975.20 : x
  2. Step 2: Convert to fraction form
    257,150.56/354,865.44 = 143,975.20/x
  3. Step 3: Cross multiply
    257,150.56x = 354,865.44 × 143,975.20
  4. Step 4: Simplify right side
    257,150.56x = 51,091,822,697.09
  5. Step 5: Solve for x
    x = 51,091,822,697.09/257,150.56
  6. Step 6: Final answer
    x = 198,684.47

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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.