Home / 358,311-517,965

Finding the Third Proportional to 358,311 and 517,965

Calculator

Solution

The third proportional to 358,311 and 517,965 is: 748,756.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,311 : 517,965 = 517,965 : x
  2. Step 2: Convert to fraction form
    358,311/517,965 = 517,965/x
  3. Step 3: Cross multiply
    358,311x = 517,965 × 517,965
  4. Step 4: Simplify right side
    358,311x = 268,287,741,225
  5. Step 5: Solve for x
    x = 268,287,741,225/358,311
  6. Step 6: Final answer
    x = 748,756.64

Related Problems

Find third proportional to 179,155.50 and 258,982.50
Half scale
Find third proportional to 716,622 and 1,035,930
Double scale
Find third proportional to 358,313 and 517,968
Similar ratio
Find third proportional to 537,466.50 and 776,947.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.