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Finding the Fourth Proportional to 315,262.80, 435,049.49 and 179,277.88

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Solution

The fourth proportional to 315,262.80, 435,049.49 and 179,277.88 is: 247,395.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,262.80 : 435,049.49 = 179,277.88 : x
  2. Step 2: Convert to fraction form
    315,262.80/435,049.49 = 179,277.88/x
  3. Step 3: Cross multiply
    315,262.80x = 435,049.49 × 179,277.88
  4. Step 4: Simplify right side
    315,262.80x = 77,994,749,622.85
  5. Step 5: Solve for x
    x = 77,994,749,622.85/315,262.80
  6. Step 6: Final answer
    x = 247,395.98

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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.