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Finding the Fourth Proportional to 303,670.08, 455,200.20 and 103,853.88

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Solution

The fourth proportional to 303,670.08, 455,200.20 and 103,853.88 is: 155,676.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,670.08 : 455,200.20 = 103,853.88 : x
  2. Step 2: Convert to fraction form
    303,670.08/455,200.20 = 103,853.88/x
  3. Step 3: Cross multiply
    303,670.08x = 455,200.20 × 103,853.88
  4. Step 4: Simplify right side
    303,670.08x = 47,274,306,946.78
  5. Step 5: Solve for x
    x = 47,274,306,946.78/303,670.08
  6. Step 6: Final answer
    x = 155,676.54

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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.