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Finding the Fourth Proportional to 384,330.20, 576,495.30 and 356,336.60

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Solution

The fourth proportional to 384,330.20, 576,495.30 and 356,336.60 is: 534,504.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,330.20 : 576,495.30 = 356,336.60 : x
  2. Step 2: Convert to fraction form
    384,330.20/576,495.30 = 356,336.60/x
  3. Step 3: Cross multiply
    384,330.20x = 576,495.30 × 356,336.60
  4. Step 4: Simplify right side
    384,330.20x = 205,426,375,117.98
  5. Step 5: Solve for x
    x = 205,426,375,117.98/384,330.20
  6. Step 6: Final answer
    x = 534,504.90

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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.