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Finding the Fourth Proportional to 303,970.92, 455,965.67 and 104,288.50

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Solution

The fourth proportional to 303,970.92, 455,965.67 and 104,288.50 is: 156,435.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,970.92 : 455,965.67 = 104,288.50 : x
  2. Step 2: Convert to fraction form
    303,970.92/455,965.67 = 104,288.50/x
  3. Step 3: Cross multiply
    303,970.92x = 455,965.67 × 104,288.50
  4. Step 4: Simplify right side
    303,970.92x = 47,551,975,775.80
  5. Step 5: Solve for x
    x = 47,551,975,775.80/303,970.92
  6. Step 6: Final answer
    x = 156,435.94

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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.