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Finding the Fourth Proportional to 303,911.10, 455,210.55 and 197,622.90

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Solution

The fourth proportional to 303,911.10, 455,210.55 and 197,622.90 is: 296,007.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,911.10 : 455,210.55 = 197,622.90 : x
  2. Step 2: Convert to fraction form
    303,911.10/455,210.55 = 197,622.90/x
  3. Step 3: Cross multiply
    303,911.10x = 455,210.55 × 197,622.90
  4. Step 4: Simplify right side
    303,911.10x = 89,960,029,001.60
  5. Step 5: Solve for x
    x = 89,960,029,001.60/303,911.10
  6. Step 6: Final answer
    x = 296,007.71

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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.