Home / 278-529

Finding the Third Proportional to 278 and 529

Calculator

Solution

The third proportional to 278 and 529 is: 1,006.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    278 : 529 = 529 : x
  2. Step 2: Convert to fraction form
    278/529 = 529/x
  3. Step 3: Cross multiply
    278x = 529 × 529
  4. Step 4: Simplify right side
    278x = 279,841
  5. Step 5: Solve for x
    x = 279,841/278
  6. Step 6: Final answer
    x = 1,006.62

Related Problems

Find third proportional to 139 and 264.50
Half scale
Find third proportional to 556 and 1,058
Double scale
Find third proportional to 280 and 533
Similar ratio
Find third proportional to 417 and 793.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.90) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.