Home / 130,140-284,148

Finding the Third Proportional to 130,140 and 284,148

Calculator

Solution

The third proportional to 130,140 and 284,148 is: 620,409.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,140 : 284,148 = 284,148 : x
  2. Step 2: Convert to fraction form
    130,140/284,148 = 284,148/x
  3. Step 3: Cross multiply
    130,140x = 284,148 × 284,148
  4. Step 4: Simplify right side
    130,140x = 80,740,085,904
  5. Step 5: Solve for x
    x = 80,740,085,904/130,140
  6. Step 6: Final answer
    x = 620,409.45

Related Problems

Find third proportional to 65,070 and 142,074
Half scale
Find third proportional to 260,280 and 568,296
Double scale
Find third proportional to 130,142 and 284,152
Similar ratio
Find third proportional to 195,210 and 426,222
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.