Home / 272,934-390,822.75

Finding the Third Proportional to 272,934 and 390,822.75

Calculator

Solution

The third proportional to 272,934 and 390,822.75 is: 559,631.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,934 : 390,822.75 = 390,822.75 : x
  2. Step 2: Convert to fraction form
    272,934/390,822.75 = 390,822.75/x
  3. Step 3: Cross multiply
    272,934x = 390,822.75 × 390,822.75
  4. Step 4: Simplify right side
    272,934x = 152,742,421,917.56
  5. Step 5: Solve for x
    x = 152,742,421,917.56/272,934
  6. Step 6: Final answer
    x = 559,631.35

Related Problems

Find third proportional to 136,467 and 195,411.38
Half scale
Find third proportional to 545,868 and 781,645.50
Double scale
Find third proportional to 272,936 and 390,826
Similar ratio
Find third proportional to 409,401 and 586,234.13
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.