Home / 137,152-278,120

Finding the Third Proportional to 137,152 and 278,120

Calculator

Solution

The third proportional to 137,152 and 278,120 is: 563,978.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,152 : 278,120 = 278,120 : x
  2. Step 2: Convert to fraction form
    137,152/278,120 = 278,120/x
  3. Step 3: Cross multiply
    137,152x = 278,120 × 278,120
  4. Step 4: Simplify right side
    137,152x = 77,350,734,400
  5. Step 5: Solve for x
    x = 77,350,734,400/137,152
  6. Step 6: Final answer
    x = 563,978.17

Related Problems

Find third proportional to 68,576 and 139,060
Half scale
Find third proportional to 274,304 and 556,240
Double scale
Find third proportional to 137,154 and 278,124
Similar ratio
Find third proportional to 205,728 and 417,180
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.