Home / 257,541.12-355,211.82-225,654.84

Finding the Fourth Proportional to 257,541.12, 355,211.82 and 225,654.84

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Solution

The fourth proportional to 257,541.12, 355,211.82 and 225,654.84 is: 311,232.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,541.12 : 355,211.82 = 225,654.84 : x
  2. Step 2: Convert to fraction form
    257,541.12/355,211.82 = 225,654.84/x
  3. Step 3: Cross multiply
    257,541.12x = 355,211.82 × 225,654.84
  4. Step 4: Simplify right side
    257,541.12x = 80,155,266,408.21
  5. Step 5: Solve for x
    x = 80,155,266,408.21/257,541.12
  6. Step 6: Final answer
    x = 311,232.89

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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.