Home / 258,629.40-356,825.40-156,622.20

Finding the Fourth Proportional to 258,629.40, 356,825.40 and 156,622.20

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Solution

The fourth proportional to 258,629.40, 356,825.40 and 156,622.20 is: 216,088.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,629.40 : 356,825.40 = 156,622.20 : x
  2. Step 2: Convert to fraction form
    258,629.40/356,825.40 = 156,622.20/x
  3. Step 3: Cross multiply
    258,629.40x = 356,825.40 × 156,622.20
  4. Step 4: Simplify right side
    258,629.40x = 55,886,779,163.88
  5. Step 5: Solve for x
    x = 55,886,779,163.88/258,629.40
  6. Step 6: Final answer
    x = 216,088.27

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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.