Home / 258,829-553,641

Finding the Third Proportional to 258,829 and 553,641

Calculator

Solution

The third proportional to 258,829 and 553,641 is: 1,184,250.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,829 : 553,641 = 553,641 : x
  2. Step 2: Convert to fraction form
    258,829/553,641 = 553,641/x
  3. Step 3: Cross multiply
    258,829x = 553,641 × 553,641
  4. Step 4: Simplify right side
    258,829x = 306,518,356,881
  5. Step 5: Solve for x
    x = 306,518,356,881/258,829
  6. Step 6: Final answer
    x = 1,184,250.44

Related Problems

Find third proportional to 129,414.50 and 276,820.50
Half scale
Find third proportional to 517,658 and 1,107,282
Double scale
Find third proportional to 258,831 and 553,645
Similar ratio
Find third proportional to 388,243.50 and 830,461.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.