Home / 228,839.05-342,798.90-128,849.41

Finding the Fourth Proportional to 228,839.05, 342,798.90 and 128,849.41

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Solution

The fourth proportional to 228,839.05, 342,798.90 and 128,849.41 is: 193,015.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,839.05 : 342,798.90 = 128,849.41 : x
  2. Step 2: Convert to fraction form
    228,839.05/342,798.90 = 128,849.41/x
  3. Step 3: Cross multiply
    228,839.05x = 342,798.90 × 128,849.41
  4. Step 4: Simplify right side
    228,839.05x = 44,169,436,013.65
  5. Step 5: Solve for x
    x = 44,169,436,013.65/228,839.05
  6. Step 6: Final answer
    x = 193,015.29

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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.