Home / 386,240.36-579,361.02-105,760.04

Finding the Fourth Proportional to 386,240.36, 579,361.02 and 105,760.04

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Solution

The fourth proportional to 386,240.36, 579,361.02 and 105,760.04 is: 158,640.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,240.36 : 579,361.02 = 105,760.04 : x
  2. Step 2: Convert to fraction form
    386,240.36/579,361.02 = 105,760.04/x
  3. Step 3: Cross multiply
    386,240.36x = 579,361.02 × 105,760.04
  4. Step 4: Simplify right side
    386,240.36x = 61,273,244,649.64
  5. Step 5: Solve for x
    x = 61,273,244,649.64/386,240.36
  6. Step 6: Final answer
    x = 158,640.19

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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.