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Finding the Fourth Proportional to 366,689.60, 550,131.60 and 130,007.60

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Solution

The fourth proportional to 366,689.60, 550,131.60 and 130,007.60 is: 195,045.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,689.60 : 550,131.60 = 130,007.60 : x
  2. Step 2: Convert to fraction form
    366,689.60/550,131.60 = 130,007.60/x
  3. Step 3: Cross multiply
    366,689.60x = 550,131.60 × 130,007.60
  4. Step 4: Simplify right side
    366,689.60x = 71,521,289,000.16
  5. Step 5: Solve for x
    x = 71,521,289,000.16/366,689.60
  6. Step 6: Final answer
    x = 195,045.86

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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.