Home / 383,529.61-529,271.45-213,760.09

Finding the Fourth Proportional to 383,529.61, 529,271.45 and 213,760.09

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Solution

The fourth proportional to 383,529.61, 529,271.45 and 213,760.09 is: 294,989.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,529.61 : 529,271.45 = 213,760.09 : x
  2. Step 2: Convert to fraction form
    383,529.61/529,271.45 = 213,760.09/x
  3. Step 3: Cross multiply
    383,529.61x = 529,271.45 × 213,760.09
  4. Step 4: Simplify right side
    383,529.61x = 113,137,112,786.43
  5. Step 5: Solve for x
    x = 113,137,112,786.43/383,529.61
  6. Step 6: Final answer
    x = 294,989.25

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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.