Home / 242,337-402,489

Finding the Third Proportional to 242,337 and 402,489

Calculator

Solution

The third proportional to 242,337 and 402,489 is: 668,479.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,337 : 402,489 = 402,489 : x
  2. Step 2: Convert to fraction form
    242,337/402,489 = 402,489/x
  3. Step 3: Cross multiply
    242,337x = 402,489 × 402,489
  4. Step 4: Simplify right side
    242,337x = 161,997,395,121
  5. Step 5: Solve for x
    x = 161,997,395,121/242,337
  6. Step 6: Final answer
    x = 668,479.82

Related Problems

Find third proportional to 121,168.50 and 201,244.50
Half scale
Find third proportional to 484,674 and 804,978
Double scale
Find third proportional to 242,339 and 402,492
Similar ratio
Find third proportional to 363,505.50 and 603,733.50
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.