Home / 148,911-318,598

Finding the Third Proportional to 148,911 and 318,598

Calculator

Solution

The third proportional to 148,911 and 318,598 is: 681,646.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,911 : 318,598 = 318,598 : x
  2. Step 2: Convert to fraction form
    148,911/318,598 = 318,598/x
  3. Step 3: Cross multiply
    148,911x = 318,598 × 318,598
  4. Step 4: Simplify right side
    148,911x = 101,504,685,604
  5. Step 5: Solve for x
    x = 101,504,685,604/148,911
  6. Step 6: Final answer
    x = 681,646.66

Related Problems

Find third proportional to 74,455.50 and 159,299
Half scale
Find third proportional to 297,822 and 637,196
Double scale
Find third proportional to 148,913 and 318,602
Similar ratio
Find third proportional to 223,366.50 and 477,897
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.