Home / 300,973.95-415,075.03-199,103.49

Finding the Fourth Proportional to 300,973.95, 415,075.03 and 199,103.49

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Solution

The fourth proportional to 300,973.95, 415,075.03 and 199,103.49 is: 274,584.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,973.95 : 415,075.03 = 199,103.49 : x
  2. Step 2: Convert to fraction form
    300,973.95/415,075.03 = 199,103.49/x
  3. Step 3: Cross multiply
    300,973.95x = 415,075.03 × 199,103.49
  4. Step 4: Simplify right side
    300,973.95x = 82,642,886,587.10
  5. Step 5: Solve for x
    x = 82,642,886,587.10/300,973.95
  6. Step 6: Final answer
    x = 274,584.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.