Home / 157,316-249,220

Finding the Third Proportional to 157,316 and 249,220

Calculator

Solution

The third proportional to 157,316 and 249,220 is: 394,814.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,316 : 249,220 = 249,220 : x
  2. Step 2: Convert to fraction form
    157,316/249,220 = 249,220/x
  3. Step 3: Cross multiply
    157,316x = 249,220 × 249,220
  4. Step 4: Simplify right side
    157,316x = 62,110,608,400
  5. Step 5: Solve for x
    x = 62,110,608,400/157,316
  6. Step 6: Final answer
    x = 394,814.31

Related Problems

Find third proportional to 78,658 and 124,610
Half scale
Find third proportional to 314,632 and 498,440
Double scale
Find third proportional to 157,318 and 249,223
Similar ratio
Find third proportional to 235,974 and 373,830
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.