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Finding the Fourth Proportional to 216,000.60, 323,855.10 and 114,815.40

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Solution

The fourth proportional to 216,000.60, 323,855.10 and 114,815.40 is: 172,145.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,000.60 : 323,855.10 = 114,815.40 : x
  2. Step 2: Convert to fraction form
    216,000.60/323,855.10 = 114,815.40/x
  3. Step 3: Cross multiply
    216,000.60x = 323,855.10 × 114,815.40
  4. Step 4: Simplify right side
    216,000.60x = 37,183,552,848.54
  5. Step 5: Solve for x
    x = 37,183,552,848.54/216,000.60
  6. Step 6: Final answer
    x = 172,145.60

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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.