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Finding the Fourth Proportional to 298,051.80, 445,911.30 and 193,075.80

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Solution

The fourth proportional to 298,051.80, 445,911.30 and 193,075.80 is: 288,858.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,051.80 : 445,911.30 = 193,075.80 : x
  2. Step 2: Convert to fraction form
    298,051.80/445,911.30 = 193,075.80/x
  3. Step 3: Cross multiply
    298,051.80x = 445,911.30 × 193,075.80
  4. Step 4: Simplify right side
    298,051.80x = 86,094,680,976.54
  5. Step 5: Solve for x
    x = 86,094,680,976.54/298,051.80
  6. Step 6: Final answer
    x = 288,858.11

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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.