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Finding the Fourth Proportional to 354,057.48, 531,184.64 and 154,395.32

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Solution

The fourth proportional to 354,057.48, 531,184.64 and 154,395.32 is: 231,635.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,057.48 : 531,184.64 = 154,395.32 : x
  2. Step 2: Convert to fraction form
    354,057.48/531,184.64 = 154,395.32/x
  3. Step 3: Cross multiply
    354,057.48x = 531,184.64 × 154,395.32
  4. Step 4: Simplify right side
    354,057.48x = 82,012,419,043.99
  5. Step 5: Solve for x
    x = 82,012,419,043.99/354,057.48
  6. Step 6: Final answer
    x = 231,635.89

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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.