Home / 255,480-554,428

Finding the Third Proportional to 255,480 and 554,428

Calculator

Solution

The third proportional to 255,480 and 554,428 is: 1,203,187.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,480 : 554,428 = 554,428 : x
  2. Step 2: Convert to fraction form
    255,480/554,428 = 554,428/x
  3. Step 3: Cross multiply
    255,480x = 554,428 × 554,428
  4. Step 4: Simplify right side
    255,480x = 307,390,407,184
  5. Step 5: Solve for x
    x = 307,390,407,184/255,480
  6. Step 6: Final answer
    x = 1,203,187.75

Related Problems

Find third proportional to 127,740 and 277,214
Half scale
Find third proportional to 510,960 and 1,108,856
Double scale
Find third proportional to 255,482 and 554,432
Similar ratio
Find third proportional to 383,220 and 831,642
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.