Home / 281,370.17-388,345.48-213,268.36

Finding the Fourth Proportional to 281,370.17, 388,345.48 and 213,268.36

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Solution

The fourth proportional to 281,370.17, 388,345.48 and 213,268.36 is: 294,351.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,370.17 : 388,345.48 = 213,268.36 : x
  2. Step 2: Convert to fraction form
    281,370.17/388,345.48 = 213,268.36/x
  3. Step 3: Cross multiply
    281,370.17x = 388,345.48 × 213,268.36
  4. Step 4: Simplify right side
    281,370.17x = 82,821,803,633.01
  5. Step 5: Solve for x
    x = 82,821,803,633.01/281,370.17
  6. Step 6: Final answer
    x = 294,351.76

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1.5x scale

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.