Home / 249,070-389,158

Finding the Third Proportional to 249,070 and 389,158

Calculator

Solution

The third proportional to 249,070 and 389,158 is: 608,037.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,070 : 389,158 = 389,158 : x
  2. Step 2: Convert to fraction form
    249,070/389,158 = 389,158/x
  3. Step 3: Cross multiply
    249,070x = 389,158 × 389,158
  4. Step 4: Simplify right side
    249,070x = 151,443,948,964
  5. Step 5: Solve for x
    x = 151,443,948,964/249,070
  6. Step 6: Final answer
    x = 608,037.70

Related Problems

Find third proportional to 124,535 and 194,579
Half scale
Find third proportional to 498,140 and 778,316
Double scale
Find third proportional to 249,072 and 389,161
Similar ratio
Find third proportional to 373,605 and 583,737
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.