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Finding the Fourth Proportional to 301,393.70, 451,572.15 and 143,281.70

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Solution

The fourth proportional to 301,393.70, 451,572.15 and 143,281.70 is: 214,676.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,393.70 : 451,572.15 = 143,281.70 : x
  2. Step 2: Convert to fraction form
    301,393.70/451,572.15 = 143,281.70/x
  3. Step 3: Cross multiply
    301,393.70x = 451,572.15 × 143,281.70
  4. Step 4: Simplify right side
    301,393.70x = 64,702,025,324.66
  5. Step 5: Solve for x
    x = 64,702,025,324.66/301,393.70
  6. Step 6: Final answer
    x = 214,676.10

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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.