Home / 291,634-402,455-157,498

Finding the Fourth Proportional to 291,634, 402,455 and 157,498

Calculator

Solution

The fourth proportional to 291,634, 402,455 and 157,498 is: 217,347.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,634 : 402,455 = 157,498 : x
  2. Step 2: Convert to fraction form
    291,634/402,455 = 157,498/x
  3. Step 3: Cross multiply
    291,634x = 402,455 × 157,498
  4. Step 4: Simplify right side
    291,634x = 63,385,857,590
  5. Step 5: Solve for x
    x = 63,385,857,590/291,634
  6. Step 6: Final answer
    x = 217,347.28

Related Problems

Find fourth proportional to 145,817, 201,227.50 and 78,749
Half scale
Find fourth proportional to 583,268, 804,910 and 314,996
Double scale
Find fourth proportional to 291,635, 402,456.38 and 157,499
Similar ratio
Find fourth proportional to 437,451, 603,682.50 and 236,247
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.