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Finding the Fourth Proportional to 230,661.66, 318,324.15 and 130,057.50

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Solution

The fourth proportional to 230,661.66, 318,324.15 and 130,057.50 is: 179,485.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,661.66 : 318,324.15 = 130,057.50 : x
  2. Step 2: Convert to fraction form
    230,661.66/318,324.15 = 130,057.50/x
  3. Step 3: Cross multiply
    230,661.66x = 318,324.15 × 130,057.50
  4. Step 4: Simplify right side
    230,661.66x = 41,400,443,138.63
  5. Step 5: Solve for x
    x = 41,400,443,138.63/230,661.66
  6. Step 6: Final answer
    x = 179,485.59

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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.