Home / 179,688-278,189

Finding the Third Proportional to 179,688 and 278,189

Calculator

Solution

The third proportional to 179,688 and 278,189 is: 430,686.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,688 : 278,189 = 278,189 : x
  2. Step 2: Convert to fraction form
    179,688/278,189 = 278,189/x
  3. Step 3: Cross multiply
    179,688x = 278,189 × 278,189
  4. Step 4: Simplify right side
    179,688x = 77,389,119,721
  5. Step 5: Solve for x
    x = 77,389,119,721/179,688
  6. Step 6: Final answer
    x = 430,686.08

Related Problems

Find third proportional to 89,844 and 139,094.50
Half scale
Find third proportional to 359,376 and 556,378
Double scale
Find third proportional to 179,690 and 278,192
Similar ratio
Find third proportional to 269,532 and 417,283.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.