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Finding the Fourth Proportional to 330,745.08, 495,822.24 and 120,234.72

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Solution

The fourth proportional to 330,745.08, 495,822.24 and 120,234.72 is: 180,244.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,745.08 : 495,822.24 = 120,234.72 : x
  2. Step 2: Convert to fraction form
    330,745.08/495,822.24 = 120,234.72/x
  3. Step 3: Cross multiply
    330,745.08x = 495,822.24 × 120,234.72
  4. Step 4: Simplify right side
    330,745.08x = 59,615,048,196.17
  5. Step 5: Solve for x
    x = 59,615,048,196.17/330,745.08
  6. Step 6: Final answer
    x = 180,244.70

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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.