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Finding the Fourth Proportional to 366,980.72, 550,611.09 and 142,498.62

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Solution

The fourth proportional to 366,980.72, 550,611.09 and 142,498.62 is: 213,802.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,980.72 : 550,611.09 = 142,498.62 : x
  2. Step 2: Convert to fraction form
    366,980.72/550,611.09 = 142,498.62/x
  3. Step 3: Cross multiply
    366,980.72x = 550,611.09 × 142,498.62
  4. Step 4: Simplify right side
    366,980.72x = 78,461,320,481.70
  5. Step 5: Solve for x
    x = 78,461,320,481.70/366,980.72
  6. Step 6: Final answer
    x = 213,802.30

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1.5x scale

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.