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Finding the Fourth Proportional to 499,873.40, 749,226.90 and 200,205.80

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Solution

The fourth proportional to 499,873.40, 749,226.90 and 200,205.80 is: 300,075.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,873.40 : 749,226.90 = 200,205.80 : x
  2. Step 2: Convert to fraction form
    499,873.40/749,226.90 = 200,205.80/x
  3. Step 3: Cross multiply
    499,873.40x = 749,226.90 × 200,205.80
  4. Step 4: Simplify right side
    499,873.40x = 149,999,570,896.02
  5. Step 5: Solve for x
    x = 149,999,570,896.02/499,873.40
  6. Step 6: Final answer
    x = 300,075.12

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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.