Home / 257,559.12-355,431.58-142,855.33

Finding the Fourth Proportional to 257,559.12, 355,431.58 and 142,855.33

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Solution

The fourth proportional to 257,559.12, 355,431.58 and 142,855.33 is: 197,140.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,559.12 : 355,431.58 = 142,855.33 : x
  2. Step 2: Convert to fraction form
    257,559.12/355,431.58 = 142,855.33/x
  3. Step 3: Cross multiply
    257,559.12x = 355,431.58 × 142,855.33
  4. Step 4: Simplify right side
    257,559.12x = 50,775,297,176.19
  5. Step 5: Solve for x
    x = 50,775,297,176.19/257,559.12
  6. Step 6: Final answer
    x = 197,140.36

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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.