Home / 389,629.40-584,444.10-164,915.15

Finding the Fourth Proportional to 389,629.40, 584,444.10 and 164,915.15

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Solution

The fourth proportional to 389,629.40, 584,444.10 and 164,915.15 is: 247,372.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,629.40 : 584,444.10 = 164,915.15 : x
  2. Step 2: Convert to fraction form
    389,629.40/584,444.10 = 164,915.15/x
  3. Step 3: Cross multiply
    389,629.40x = 584,444.10 × 164,915.15
  4. Step 4: Simplify right side
    389,629.40x = 96,383,686,418.12
  5. Step 5: Solve for x
    x = 96,383,686,418.12/389,629.40
  6. Step 6: Final answer
    x = 247,372.73

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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.