Home / 58,457-128,830

Finding the Third Proportional to 58,457 and 128,830

Calculator

Solution

The third proportional to 58,457 and 128,830 is: 283,920.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,457 : 128,830 = 128,830 : x
  2. Step 2: Convert to fraction form
    58,457/128,830 = 128,830/x
  3. Step 3: Cross multiply
    58,457x = 128,830 × 128,830
  4. Step 4: Simplify right side
    58,457x = 16,597,168,900
  5. Step 5: Solve for x
    x = 16,597,168,900/58,457
  6. Step 6: Final answer
    x = 283,920.98

Related Problems

Find third proportional to 29,228.50 and 64,415
Half scale
Find third proportional to 116,914 and 257,660
Double scale
Find third proportional to 58,459 and 128,834
Similar ratio
Find third proportional to 87,685.50 and 193,245
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.