Home / 258,156-559,205

Finding the Third Proportional to 258,156 and 559,205

Calculator

Solution

The third proportional to 258,156 and 559,205 is: 1,211,322.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,156 : 559,205 = 559,205 : x
  2. Step 2: Convert to fraction form
    258,156/559,205 = 559,205/x
  3. Step 3: Cross multiply
    258,156x = 559,205 × 559,205
  4. Step 4: Simplify right side
    258,156x = 312,710,232,025
  5. Step 5: Solve for x
    x = 312,710,232,025/258,156
  6. Step 6: Final answer
    x = 1,211,322.74

Related Problems

Find third proportional to 129,078 and 279,602.50
Half scale
Find third proportional to 516,312 and 1,118,410
Double scale
Find third proportional to 258,158 and 559,209
Similar ratio
Find third proportional to 387,234 and 838,807.50
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.