Home / 257,104-553,680

Finding the Third Proportional to 257,104 and 553,680

Calculator

Solution

The third proportional to 257,104 and 553,680 is: 1,192,363.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,104 : 553,680 = 553,680 : x
  2. Step 2: Convert to fraction form
    257,104/553,680 = 553,680/x
  3. Step 3: Cross multiply
    257,104x = 553,680 × 553,680
  4. Step 4: Simplify right side
    257,104x = 306,561,542,400
  5. Step 5: Solve for x
    x = 306,561,542,400/257,104
  6. Step 6: Final answer
    x = 1,192,363.96

Related Problems

Find third proportional to 128,552 and 276,840
Half scale
Find third proportional to 514,208 and 1,107,360
Double scale
Find third proportional to 257,106 and 553,684
Similar ratio
Find third proportional to 385,656 and 830,520
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.