Home / 309,363.53-426,123.09-218,561.87

Finding the Fourth Proportional to 309,363.53, 426,123.09 and 218,561.87

Calculator

Solution

The fourth proportional to 309,363.53, 426,123.09 and 218,561.87 is: 301,051.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,363.53 : 426,123.09 = 218,561.87 : x
  2. Step 2: Convert to fraction form
    309,363.53/426,123.09 = 218,561.87/x
  3. Step 3: Cross multiply
    309,363.53x = 426,123.09 × 218,561.87
  4. Step 4: Simplify right side
    309,363.53x = 93,134,260,465.89
  5. Step 5: Solve for x
    x = 93,134,260,465.89/309,363.53
  6. Step 6: Final answer
    x = 301,051.20

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.