Home / 158-342.50

Finding the Third Proportional to 158 and 342.50

Calculator

Solution

The third proportional to 158 and 342.50 is: 742.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    158 : 342.50 = 342.50 : x
  2. Step 2: Convert to fraction form
    158/342.50 = 342.50/x
  3. Step 3: Cross multiply
    158x = 342.50 × 342.50
  4. Step 4: Simplify right side
    158x = 117,306.25
  5. Step 5: Solve for x
    x = 117,306.25/158
  6. Step 6: Final answer
    x = 742.44

Related Problems

Find third proportional to 79 and 171.25
Half scale
Find third proportional to 316 and 685
Double scale
Find third proportional to 160 and 347
Similar ratio
Find third proportional to 237 and 513.75
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.