Home / 302,020-423,290

Finding the Third Proportional to 302,020 and 423,290

Calculator

Solution

The third proportional to 302,020 and 423,290 is: 593,253.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,020 : 423,290 = 423,290 : x
  2. Step 2: Convert to fraction form
    302,020/423,290 = 423,290/x
  3. Step 3: Cross multiply
    302,020x = 423,290 × 423,290
  4. Step 4: Simplify right side
    302,020x = 179,174,424,100
  5. Step 5: Solve for x
    x = 179,174,424,100/302,020
  6. Step 6: Final answer
    x = 593,253.51

Related Problems

Find third proportional to 151,010 and 211,645
Half scale
Find third proportional to 604,040 and 846,580
Double scale
Find third proportional to 302,022 and 423,293
Similar ratio
Find third proportional to 453,030 and 634,935
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.