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Finding the Fourth Proportional to 303,310.34, 455,013.58 and 100,913.66

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Solution

The fourth proportional to 303,310.34, 455,013.58 and 100,913.66 is: 151,386.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,310.34 : 455,013.58 = 100,913.66 : x
  2. Step 2: Convert to fraction form
    303,310.34/455,013.58 = 100,913.66/x
  3. Step 3: Cross multiply
    303,310.34x = 455,013.58 × 100,913.66
  4. Step 4: Simplify right side
    303,310.34x = 45,917,085,707.50
  5. Step 5: Solve for x
    x = 45,917,085,707.50/303,310.34
  6. Step 6: Final answer
    x = 151,386.48

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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.