Home / 257,029.20-385,558.92-99,258.48

Finding the Fourth Proportional to 257,029.20, 385,558.92 and 99,258.48

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Solution

The fourth proportional to 257,029.20, 385,558.92 and 99,258.48 is: 148,893.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,029.20 : 385,558.92 = 99,258.48 : x
  2. Step 2: Convert to fraction form
    257,029.20/385,558.92 = 99,258.48/x
  3. Step 3: Cross multiply
    257,029.20x = 385,558.92 × 99,258.48
  4. Step 4: Simplify right side
    257,029.20x = 38,269,992,349.64
  5. Step 5: Solve for x
    x = 38,269,992,349.64/257,029.20
  6. Step 6: Final answer
    x = 148,893.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.