Home / 307,043.20-459,908.70-254,555.20

Finding the Fourth Proportional to 307,043.20, 459,908.70 and 254,555.20

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Solution

The fourth proportional to 307,043.20, 459,908.70 and 254,555.20 is: 381,288.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,043.20 : 459,908.70 = 254,555.20 : x
  2. Step 2: Convert to fraction form
    307,043.20/459,908.70 = 254,555.20/x
  3. Step 3: Cross multiply
    307,043.20x = 459,908.70 × 254,555.20
  4. Step 4: Simplify right side
    307,043.20x = 117,072,151,110.24
  5. Step 5: Solve for x
    x = 117,072,151,110.24/307,043.20
  6. Step 6: Final answer
    x = 381,288.86

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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.