Home / 391,071.50-539,678.67-212,223.50

Finding the Fourth Proportional to 391,071.50, 539,678.67 and 212,223.50

Calculator

Solution

The fourth proportional to 391,071.50, 539,678.67 and 212,223.50 is: 292,868.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,071.50 : 539,678.67 = 212,223.50 : x
  2. Step 2: Convert to fraction form
    391,071.50/539,678.67 = 212,223.50/x
  3. Step 3: Cross multiply
    391,071.50x = 539,678.67 × 212,223.50
  4. Step 4: Simplify right side
    391,071.50x = 114,532,496,222.75
  5. Step 5: Solve for x
    x = 114,532,496,222.75/391,071.50
  6. Step 6: Final answer
    x = 292,868.43

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.