Home / 145,588-316,816

Finding the Third Proportional to 145,588 and 316,816

Calculator

Solution

The third proportional to 145,588 and 316,816 is: 689,427.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,588 : 316,816 = 316,816 : x
  2. Step 2: Convert to fraction form
    145,588/316,816 = 316,816/x
  3. Step 3: Cross multiply
    145,588x = 316,816 × 316,816
  4. Step 4: Simplify right side
    145,588x = 100,372,377,856
  5. Step 5: Solve for x
    x = 100,372,377,856/145,588
  6. Step 6: Final answer
    x = 689,427.55

Related Problems

Find third proportional to 72,794 and 158,408
Half scale
Find third proportional to 291,176 and 633,632
Double scale
Find third proportional to 145,590 and 316,820
Similar ratio
Find third proportional to 218,382 and 475,224
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.