Home / 145,310-307,905

Finding the Third Proportional to 145,310 and 307,905

Calculator

Solution

The third proportional to 145,310 and 307,905 is: 652,436.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,310 : 307,905 = 307,905 : x
  2. Step 2: Convert to fraction form
    145,310/307,905 = 307,905/x
  3. Step 3: Cross multiply
    145,310x = 307,905 × 307,905
  4. Step 4: Simplify right side
    145,310x = 94,805,489,025
  5. Step 5: Solve for x
    x = 94,805,489,025/145,310
  6. Step 6: Final answer
    x = 652,436.10

Related Problems

Find third proportional to 72,655 and 153,952.50
Half scale
Find third proportional to 290,620 and 615,810
Double scale
Find third proportional to 145,312 and 307,909
Similar ratio
Find third proportional to 217,965 and 461,857.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.