Home / 256,548-397,276.50

Finding the Third Proportional to 256,548 and 397,276.50

Calculator

Solution

The third proportional to 256,548 and 397,276.50 is: 615,201.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,548 : 397,276.50 = 397,276.50 : x
  2. Step 2: Convert to fraction form
    256,548/397,276.50 = 397,276.50/x
  3. Step 3: Cross multiply
    256,548x = 397,276.50 × 397,276.50
  4. Step 4: Simplify right side
    256,548x = 157,828,617,452.25
  5. Step 5: Solve for x
    x = 157,828,617,452.25/256,548
  6. Step 6: Final answer
    x = 615,201.12

Related Problems

Find third proportional to 128,274 and 198,638.25
Half scale
Find third proportional to 513,096 and 794,553
Double scale
Find third proportional to 256,550 and 397,280
Similar ratio
Find third proportional to 384,822 and 595,914.75
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.