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Finding the Fourth Proportional to 383,343.52, 529,014.72 and 213,583.68

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Solution

The fourth proportional to 383,343.52, 529,014.72 and 213,583.68 is: 294,745.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,343.52 : 529,014.72 = 213,583.68 : x
  2. Step 2: Convert to fraction form
    383,343.52/529,014.72 = 213,583.68/x
  3. Step 3: Cross multiply
    383,343.52x = 529,014.72 × 213,583.68
  4. Step 4: Simplify right side
    383,343.52x = 112,988,910,671.77
  5. Step 5: Solve for x
    x = 112,988,910,671.77/383,343.52
  6. Step 6: Final answer
    x = 294,745.85

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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.