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Finding the Fourth Proportional to 310,846.48, 428,983.90 and 183,519.34

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Solution

The fourth proportional to 310,846.48, 428,983.90 and 183,519.34 is: 253,265.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,846.48 : 428,983.90 = 183,519.34 : x
  2. Step 2: Convert to fraction form
    310,846.48/428,983.90 = 183,519.34/x
  3. Step 3: Cross multiply
    310,846.48x = 428,983.90 × 183,519.34
  4. Step 4: Simplify right side
    310,846.48x = 78,726,842,198.63
  5. Step 5: Solve for x
    x = 78,726,842,198.63/310,846.48
  6. Step 6: Final answer
    x = 253,265.99

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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.