Home / 238,128.30-357,192.46-111,855.72

Finding the Fourth Proportional to 238,128.30, 357,192.46 and 111,855.72

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Solution

The fourth proportional to 238,128.30, 357,192.46 and 111,855.72 is: 167,783.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,128.30 : 357,192.46 = 111,855.72 : x
  2. Step 2: Convert to fraction form
    238,128.30/357,192.46 = 111,855.72/x
  3. Step 3: Cross multiply
    238,128.30x = 357,192.46 × 111,855.72
  4. Step 4: Simplify right side
    238,128.30x = 39,954,019,791.87
  5. Step 5: Solve for x
    x = 39,954,019,791.87/238,128.30
  6. Step 6: Final answer
    x = 167,783.58

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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.