Home / 153,288-229,932-42,480

Finding the Fourth Proportional to 153,288, 229,932 and 42,480

Calculator

Solution

The fourth proportional to 153,288, 229,932 and 42,480 is: 63,720

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,288 : 229,932 = 42,480 : x
  2. Step 2: Convert to fraction form
    153,288/229,932 = 42,480/x
  3. Step 3: Cross multiply
    153,288x = 229,932 × 42,480
  4. Step 4: Simplify right side
    153,288x = 9,767,511,360
  5. Step 5: Solve for x
    x = 9,767,511,360/153,288
  6. Step 6: Final answer
    x = 63,720

Related Problems

Find fourth proportional to 76,644, 114,966 and 21,240
Half scale
Find fourth proportional to 306,576, 459,864 and 84,960
Double scale
Find fourth proportional to 153,289, 229,933.50 and 42,481
Similar ratio
Find fourth proportional to 229,932, 344,898 and 63,720
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.