Home / 163,820-257,030

Finding the Third Proportional to 163,820 and 257,030

Calculator

Solution

The third proportional to 163,820 and 257,030 is: 403,274.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,820 : 257,030 = 257,030 : x
  2. Step 2: Convert to fraction form
    163,820/257,030 = 257,030/x
  3. Step 3: Cross multiply
    163,820x = 257,030 × 257,030
  4. Step 4: Simplify right side
    163,820x = 66,064,420,900
  5. Step 5: Solve for x
    x = 66,064,420,900/163,820
  6. Step 6: Final answer
    x = 403,274.45

Related Problems

Find third proportional to 81,910 and 128,515
Half scale
Find third proportional to 327,640 and 514,060
Double scale
Find third proportional to 163,822 and 257,033
Similar ratio
Find third proportional to 245,730 and 385,545
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.