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Finding the Fourth Proportional to 303,702.90, 455,295.15 and 214,676.34

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Solution

The fourth proportional to 303,702.90, 455,295.15 and 214,676.34 is: 321,831.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,702.90 : 455,295.15 = 214,676.34 : x
  2. Step 2: Convert to fraction form
    303,702.90/455,295.15 = 214,676.34/x
  3. Step 3: Cross multiply
    303,702.90x = 455,295.15 × 214,676.34
  4. Step 4: Simplify right side
    303,702.90x = 97,741,096,421.75
  5. Step 5: Solve for x
    x = 97,741,096,421.75/303,702.90
  6. Step 6: Final answer
    x = 321,831.29

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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.