Home / 213,372.20-294,449.40-117,878

Finding the Fourth Proportional to 213,372.20, 294,449.40 and 117,878

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Solution

The fourth proportional to 213,372.20, 294,449.40 and 117,878 is: 162,669.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,372.20 : 294,449.40 = 117,878 : x
  2. Step 2: Convert to fraction form
    213,372.20/294,449.40 = 117,878/x
  3. Step 3: Cross multiply
    213,372.20x = 294,449.40 × 117,878
  4. Step 4: Simplify right side
    213,372.20x = 34,709,106,373.20
  5. Step 5: Solve for x
    x = 34,709,106,373.20/213,372.20
  6. Step 6: Final answer
    x = 162,669.30

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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.