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Finding the Fourth Proportional to 356,648.35, 534,848.46 and 143,352.94

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Solution

The fourth proportional to 356,648.35, 534,848.46 and 143,352.94 is: 214,979.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,648.35 : 534,848.46 = 143,352.94 : x
  2. Step 2: Convert to fraction form
    356,648.35/534,848.46 = 143,352.94/x
  3. Step 3: Cross multiply
    356,648.35x = 534,848.46 × 143,352.94
  4. Step 4: Simplify right side
    356,648.35x = 76,672,099,195.47
  5. Step 5: Solve for x
    x = 76,672,099,195.47/356,648.35
  6. Step 6: Final answer
    x = 214,979.54

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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.