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Finding the Fourth Proportional to 307,042.20, 459,907.20 and 254,554.20

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Solution

The fourth proportional to 307,042.20, 459,907.20 and 254,554.20 is: 381,287.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,042.20 : 459,907.20 = 254,554.20 : x
  2. Step 2: Convert to fraction form
    307,042.20/459,907.20 = 254,554.20/x
  3. Step 3: Cross multiply
    307,042.20x = 459,907.20 × 254,554.20
  4. Step 4: Simplify right side
    307,042.20x = 117,071,309,370.24
  5. Step 5: Solve for x
    x = 117,071,309,370.24/307,042.20
  6. Step 6: Final answer
    x = 381,287.36

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1.5x scale

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.