Home / 281,371.17-388,346.86-213,269.36

Finding the Fourth Proportional to 281,371.17, 388,346.86 and 213,269.36

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Solution

The fourth proportional to 281,371.17, 388,346.86 and 213,269.36 is: 294,353.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,371.17 : 388,346.86 = 213,269.36 : x
  2. Step 2: Convert to fraction form
    281,371.17/388,346.86 = 213,269.36/x
  3. Step 3: Cross multiply
    281,371.17x = 388,346.86 × 213,269.36
  4. Step 4: Simplify right side
    281,371.17x = 82,822,486,290.21
  5. Step 5: Solve for x
    x = 82,822,486,290.21/281,371.17
  6. Step 6: Final answer
    x = 294,353.14

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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.