Home / 477-660.50

Finding the Third Proportional to 477 and 660.50

Calculator

Solution

The third proportional to 477 and 660.50 is: 914.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    477 : 660.50 = 660.50 : x
  2. Step 2: Convert to fraction form
    477/660.50 = 660.50/x
  3. Step 3: Cross multiply
    477x = 660.50 × 660.50
  4. Step 4: Simplify right side
    477x = 436,260.25
  5. Step 5: Solve for x
    x = 436,260.25/477
  6. Step 6: Final answer
    x = 914.59

Related Problems

Find third proportional to 238.50 and 330.25
Half scale
Find third proportional to 954 and 1,321
Double scale
Find third proportional to 479 and 663
Similar ratio
Find third proportional to 715.50 and 990.75
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.