Home / 339,966.80-508,913.40-199,307.60

Finding the Fourth Proportional to 339,966.80, 508,913.40 and 199,307.60

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Solution

The fourth proportional to 339,966.80, 508,913.40 and 199,307.60 is: 298,353.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,966.80 : 508,913.40 = 199,307.60 : x
  2. Step 2: Convert to fraction form
    339,966.80/508,913.40 = 199,307.60/x
  3. Step 3: Cross multiply
    339,966.80x = 508,913.40 × 199,307.60
  4. Step 4: Simplify right side
    339,966.80x = 101,430,308,361.84
  5. Step 5: Solve for x
    x = 101,430,308,361.84/339,966.80
  6. Step 6: Final answer
    x = 298,353.57

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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.