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Finding the Fourth Proportional to 202,907.40, 304,361.10 and 199,408.20

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Solution

The fourth proportional to 202,907.40, 304,361.10 and 199,408.20 is: 299,112.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,907.40 : 304,361.10 = 199,408.20 : x
  2. Step 2: Convert to fraction form
    202,907.40/304,361.10 = 199,408.20/x
  3. Step 3: Cross multiply
    202,907.40x = 304,361.10 × 199,408.20
  4. Step 4: Simplify right side
    202,907.40x = 60,692,099,101.02
  5. Step 5: Solve for x
    x = 60,692,099,101.02/202,907.40
  6. Step 6: Final answer
    x = 299,112.30

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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.