Home / 212,147.80-318,804.96-198,277.36

Finding the Fourth Proportional to 212,147.80, 318,804.96 and 198,277.36

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Solution

The fourth proportional to 212,147.80, 318,804.96 and 198,277.36 is: 297,961.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,147.80 : 318,804.96 = 198,277.36 : x
  2. Step 2: Convert to fraction form
    212,147.80/318,804.96 = 198,277.36/x
  3. Step 3: Cross multiply
    212,147.80x = 318,804.96 × 198,277.36
  4. Step 4: Simplify right side
    212,147.80x = 63,211,805,823.71
  5. Step 5: Solve for x
    x = 63,211,805,823.71/212,147.80
  6. Step 6: Final answer
    x = 297,961.17

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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.