Home / 257,152-385,476

Finding the Third Proportional to 257,152 and 385,476

Calculator

Solution

The third proportional to 257,152 and 385,476 is: 577,836.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,152 : 385,476 = 385,476 : x
  2. Step 2: Convert to fraction form
    257,152/385,476 = 385,476/x
  3. Step 3: Cross multiply
    257,152x = 385,476 × 385,476
  4. Step 4: Simplify right side
    257,152x = 148,591,746,576
  5. Step 5: Solve for x
    x = 148,591,746,576/257,152
  6. Step 6: Final answer
    x = 577,836.25

Related Problems

Find third proportional to 128,576 and 192,738
Half scale
Find third proportional to 514,304 and 770,952
Double scale
Find third proportional to 257,154 and 385,479
Similar ratio
Find third proportional to 385,728 and 578,214
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.