Home / 287,258-402,532

Finding the Third Proportional to 287,258 and 402,532

Calculator

Solution

The third proportional to 287,258 and 402,532 is: 564,064.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,258 : 402,532 = 402,532 : x
  2. Step 2: Convert to fraction form
    287,258/402,532 = 402,532/x
  3. Step 3: Cross multiply
    287,258x = 402,532 × 402,532
  4. Step 4: Simplify right side
    287,258x = 162,032,011,024
  5. Step 5: Solve for x
    x = 162,032,011,024/287,258
  6. Step 6: Final answer
    x = 564,064.40

Related Problems

Find third proportional to 143,629 and 201,266
Half scale
Find third proportional to 574,516 and 805,064
Double scale
Find third proportional to 287,260 and 402,535
Similar ratio
Find third proportional to 430,887 and 603,798
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.