Home / 229,128.40-343,692.60-199,603.90

Finding the Fourth Proportional to 229,128.40, 343,692.60 and 199,603.90

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Solution

The fourth proportional to 229,128.40, 343,692.60 and 199,603.90 is: 299,405.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,128.40 : 343,692.60 = 199,603.90 : x
  2. Step 2: Convert to fraction form
    229,128.40/343,692.60 = 199,603.90/x
  3. Step 3: Cross multiply
    229,128.40x = 343,692.60 × 199,603.90
  4. Step 4: Simplify right side
    229,128.40x = 68,602,383,361.14
  5. Step 5: Solve for x
    x = 68,602,383,361.14/229,128.40
  6. Step 6: Final answer
    x = 299,405.85

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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.