Home / 289,346-442,358

Finding the Third Proportional to 289,346 and 442,358

Calculator

Solution

The third proportional to 289,346 and 442,358 is: 676,285.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,346 : 442,358 = 442,358 : x
  2. Step 2: Convert to fraction form
    289,346/442,358 = 442,358/x
  3. Step 3: Cross multiply
    289,346x = 442,358 × 442,358
  4. Step 4: Simplify right side
    289,346x = 195,680,600,164
  5. Step 5: Solve for x
    x = 195,680,600,164/289,346
  6. Step 6: Final answer
    x = 676,285.83

Related Problems

Find third proportional to 144,673 and 221,179
Half scale
Find third proportional to 578,692 and 884,716
Double scale
Find third proportional to 289,348 and 442,361
Similar ratio
Find third proportional to 434,019 and 663,537
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.