Home / 286,918.40-395,942.02-196,271.30

Finding the Fourth Proportional to 286,918.40, 395,942.02 and 196,271.30

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Solution

The fourth proportional to 286,918.40, 395,942.02 and 196,271.30 is: 270,850.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,918.40 : 395,942.02 = 196,271.30 : x
  2. Step 2: Convert to fraction form
    286,918.40/395,942.02 = 196,271.30/x
  3. Step 3: Cross multiply
    286,918.40x = 395,942.02 × 196,271.30
  4. Step 4: Simplify right side
    286,918.40x = 77,712,054,990.03
  5. Step 5: Solve for x
    x = 77,712,054,990.03/286,918.40
  6. Step 6: Final answer
    x = 270,850.72

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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.