Home / 282-442

Finding the Third Proportional to 282 and 442

Calculator

Solution

The third proportional to 282 and 442 is: 692.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    282 : 442 = 442 : x
  2. Step 2: Convert to fraction form
    282/442 = 442/x
  3. Step 3: Cross multiply
    282x = 442 × 442
  4. Step 4: Simplify right side
    282x = 195,364
  5. Step 5: Solve for x
    x = 195,364/282
  6. Step 6: Final answer
    x = 692.78

Related Problems

Find third proportional to 141 and 221
Half scale
Find third proportional to 564 and 884
Double scale
Find third proportional to 284 and 445
Similar ratio
Find third proportional to 423 and 663
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.