Home / 356,152.50-509,263.50

Finding the Third Proportional to 356,152.50 and 509,263.50

Calculator

Solution

The third proportional to 356,152.50 and 509,263.50 is: 728,197.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,152.50 : 509,263.50 = 509,263.50 : x
  2. Step 2: Convert to fraction form
    356,152.50/509,263.50 = 509,263.50/x
  3. Step 3: Cross multiply
    356,152.50x = 509,263.50 × 509,263.50
  4. Step 4: Simplify right side
    356,152.50x = 259,349,312,432.25
  5. Step 5: Solve for x
    x = 259,349,312,432.25/356,152.50
  6. Step 6: Final answer
    x = 728,197.37

Related Problems

Find third proportional to 178,076.25 and 254,631.75
Half scale
Find third proportional to 712,305 and 1,018,527
Double scale
Find third proportional to 356,155 and 509,266
Similar ratio
Find third proportional to 534,228.75 and 763,895.25
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.