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Finding the Fourth Proportional to 305,028.52, 457,542.76 and 83,412.52

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Solution

The fourth proportional to 305,028.52, 457,542.76 and 83,412.52 is: 125,118.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,028.52 : 457,542.76 = 83,412.52 : x
  2. Step 2: Convert to fraction form
    305,028.52/457,542.76 = 83,412.52/x
  3. Step 3: Cross multiply
    305,028.52x = 457,542.76 × 83,412.52
  4. Step 4: Simplify right side
    305,028.52x = 38,164,794,619.36
  5. Step 5: Solve for x
    x = 38,164,794,619.36/305,028.52
  6. Step 6: Final answer
    x = 125,118.77

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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.