Home / 217,440-359,872

Finding the Third Proportional to 217,440 and 359,872

Calculator

Solution

The third proportional to 217,440 and 359,872 is: 595,602.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,440 : 359,872 = 359,872 : x
  2. Step 2: Convert to fraction form
    217,440/359,872 = 359,872/x
  3. Step 3: Cross multiply
    217,440x = 359,872 × 359,872
  4. Step 4: Simplify right side
    217,440x = 129,507,856,384
  5. Step 5: Solve for x
    x = 129,507,856,384/217,440
  6. Step 6: Final answer
    x = 595,602.72

Related Problems

Find third proportional to 108,720 and 179,936
Half scale
Find third proportional to 434,880 and 719,744
Double scale
Find third proportional to 217,442 and 359,875
Similar ratio
Find third proportional to 326,160 and 539,808
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.