Home / 201,356-319,890

Finding the Third Proportional to 201,356 and 319,890

Calculator

Solution

The third proportional to 201,356 and 319,890 is: 508,202.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,356 : 319,890 = 319,890 : x
  2. Step 2: Convert to fraction form
    201,356/319,890 = 319,890/x
  3. Step 3: Cross multiply
    201,356x = 319,890 × 319,890
  4. Step 4: Simplify right side
    201,356x = 102,329,612,100
  5. Step 5: Solve for x
    x = 102,329,612,100/201,356
  6. Step 6: Final answer
    x = 508,202.45

Related Problems

Find third proportional to 100,678 and 159,945
Half scale
Find third proportional to 402,712 and 639,780
Double scale
Find third proportional to 201,358 and 319,893
Similar ratio
Find third proportional to 302,034 and 479,835
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.