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Finding the Fourth Proportional to 366,976.98, 550,492.80 and 130,288.90

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Solution

The fourth proportional to 366,976.98, 550,492.80 and 130,288.90 is: 195,443.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,976.98 : 550,492.80 = 130,288.90 : x
  2. Step 2: Convert to fraction form
    366,976.98/550,492.80 = 130,288.90/x
  3. Step 3: Cross multiply
    366,976.98x = 550,492.80 × 130,288.90
  4. Step 4: Simplify right side
    366,976.98x = 71,723,101,369.92
  5. Step 5: Solve for x
    x = 71,723,101,369.92/366,976.98
  6. Step 6: Final answer
    x = 195,443.05

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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.