Home / 278,844.98-384,804.74-157,986.04

Finding the Fourth Proportional to 278,844.98, 384,804.74 and 157,986.04

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Solution

The fourth proportional to 278,844.98, 384,804.74 and 157,986.04 is: 218,019.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,844.98 : 384,804.74 = 157,986.04 : x
  2. Step 2: Convert to fraction form
    278,844.98/384,804.74 = 157,986.04/x
  3. Step 3: Cross multiply
    278,844.98x = 384,804.74 × 157,986.04
  4. Step 4: Simplify right side
    278,844.98x = 60,793,777,045.83
  5. Step 5: Solve for x
    x = 60,793,777,045.83/278,844.98
  6. Step 6: Final answer
    x = 218,019.98

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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.