Home / 258,050-390,964

Finding the Third Proportional to 258,050 and 390,964

Calculator

Solution

The third proportional to 258,050 and 390,964 is: 592,338.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,050 : 390,964 = 390,964 : x
  2. Step 2: Convert to fraction form
    258,050/390,964 = 390,964/x
  3. Step 3: Cross multiply
    258,050x = 390,964 × 390,964
  4. Step 4: Simplify right side
    258,050x = 152,852,849,296
  5. Step 5: Solve for x
    x = 152,852,849,296/258,050
  6. Step 6: Final answer
    x = 592,338.11

Related Problems

Find third proportional to 129,025 and 195,482
Half scale
Find third proportional to 516,100 and 781,928
Double scale
Find third proportional to 258,052 and 390,967
Similar ratio
Find third proportional to 387,075 and 586,446
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.