Home / 291,820-437,730-70,204

Finding the Fourth Proportional to 291,820, 437,730 and 70,204

Calculator

Solution

The fourth proportional to 291,820, 437,730 and 70,204 is: 105,306

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,820 : 437,730 = 70,204 : x
  2. Step 2: Convert to fraction form
    291,820/437,730 = 70,204/x
  3. Step 3: Cross multiply
    291,820x = 437,730 × 70,204
  4. Step 4: Simplify right side
    291,820x = 30,730,396,920
  5. Step 5: Solve for x
    x = 30,730,396,920/291,820
  6. Step 6: Final answer
    x = 105,306

Related Problems

Find fourth proportional to 145,910, 218,865 and 35,102
Half scale
Find fourth proportional to 583,640, 875,460 and 140,408
Double scale
Find fourth proportional to 291,821, 437,731.50 and 70,205
Similar ratio
Find fourth proportional to 437,730, 656,595 and 105,306
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.