Home / 211,254.14-315,243.30-188,820.38

Finding the Fourth Proportional to 211,254.14, 315,243.30 and 188,820.38

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Solution

The fourth proportional to 211,254.14, 315,243.30 and 188,820.38 is: 281,766.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,254.14 : 315,243.30 = 188,820.38 : x
  2. Step 2: Convert to fraction form
    211,254.14/315,243.30 = 188,820.38/x
  3. Step 3: Cross multiply
    211,254.14x = 315,243.30 × 188,820.38
  4. Step 4: Simplify right side
    211,254.14x = 59,524,358,830.31
  5. Step 5: Solve for x
    x = 59,524,358,830.31/211,254.14
  6. Step 6: Final answer
    x = 281,766.60

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.