Home / 263.25-387

Finding the Third Proportional to 263.25 and 387

Calculator

Solution

The third proportional to 263.25 and 387 is: 568.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.25 : 387 = 387 : x
  2. Step 2: Convert to fraction form
    263.25/387 = 387/x
  3. Step 3: Cross multiply
    263.25x = 387 × 387
  4. Step 4: Simplify right side
    263.25x = 149,769
  5. Step 5: Solve for x
    x = 149,769/263.25
  6. Step 6: Final answer
    x = 568.92

Related Problems

Find third proportional to 131.63 and 193.50
Half scale
Find third proportional to 526.50 and 774
Double scale
Find third proportional to 265 and 390
Similar ratio
Find third proportional to 394.88 and 580.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.