Home / 240-358

Finding the Third Proportional to 240 and 358

Calculator

Solution

The third proportional to 240 and 358 is: 534.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    240 : 358 = 358 : x
  2. Step 2: Convert to fraction form
    240/358 = 358/x
  3. Step 3: Cross multiply
    240x = 358 × 358
  4. Step 4: Simplify right side
    240x = 128,164
  5. Step 5: Solve for x
    x = 128,164/240
  6. Step 6: Final answer
    x = 534.02

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.