Home / 303,733.20-455,612.28-104,190.78

Finding the Fourth Proportional to 303,733.20, 455,612.28 and 104,190.78

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Solution

The fourth proportional to 303,733.20, 455,612.28 and 104,190.78 is: 156,290.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,733.20 : 455,612.28 = 104,190.78 : x
  2. Step 2: Convert to fraction form
    303,733.20/455,612.28 = 104,190.78/x
  3. Step 3: Cross multiply
    303,733.20x = 455,612.28 × 104,190.78
  4. Step 4: Simplify right side
    303,733.20x = 47,470,598,830.78
  5. Step 5: Solve for x
    x = 47,470,598,830.78/303,733.20
  6. Step 6: Final answer
    x = 156,290.45

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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.