Home / 257,925.42-355,938.48-143,205.84

Finding the Fourth Proportional to 257,925.42, 355,938.48 and 143,205.84

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Solution

The fourth proportional to 257,925.42, 355,938.48 and 143,205.84 is: 197,624.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,925.42 : 355,938.48 = 143,205.84 : x
  2. Step 2: Convert to fraction form
    257,925.42/355,938.48 = 143,205.84/x
  3. Step 3: Cross multiply
    257,925.42x = 355,938.48 × 143,205.84
  4. Step 4: Simplify right side
    257,925.42x = 50,972,469,016.72
  5. Step 5: Solve for x
    x = 50,972,469,016.72/257,925.42
  6. Step 6: Final answer
    x = 197,624.84

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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.