Home / 306,526-455,415

Finding the Third Proportional to 306,526 and 455,415

Calculator

Solution

The third proportional to 306,526 and 455,415 is: 676,623.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,526 : 455,415 = 455,415 : x
  2. Step 2: Convert to fraction form
    306,526/455,415 = 455,415/x
  3. Step 3: Cross multiply
    306,526x = 455,415 × 455,415
  4. Step 4: Simplify right side
    306,526x = 207,402,822,225
  5. Step 5: Solve for x
    x = 207,402,822,225/306,526
  6. Step 6: Final answer
    x = 676,623.92

Related Problems

Find third proportional to 153,263 and 227,707.50
Half scale
Find third proportional to 613,052 and 910,830
Double scale
Find third proportional to 306,528 and 455,418
Similar ratio
Find third proportional to 459,789 and 683,122.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.