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Finding the Fourth Proportional to 366,980.99, 550,446.72 and 100,719.20

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Solution

The fourth proportional to 366,980.99, 550,446.72 and 100,719.20 is: 151,072.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,980.99 : 550,446.72 = 100,719.20 : x
  2. Step 2: Convert to fraction form
    366,980.99/550,446.72 = 100,719.20/x
  3. Step 3: Cross multiply
    366,980.99x = 550,446.72 × 100,719.20
  4. Step 4: Simplify right side
    366,980.99x = 55,440,553,281.02
  5. Step 5: Solve for x
    x = 55,440,553,281.02/366,980.99
  6. Step 6: Final answer
    x = 151,072.00

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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.