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Finding the Fourth Proportional to 348,291.85, 480,695.29 and 212,404.62

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Solution

The fourth proportional to 348,291.85, 480,695.29 and 212,404.62 is: 293,150.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,291.85 : 480,695.29 = 212,404.62 : x
  2. Step 2: Convert to fraction form
    348,291.85/480,695.29 = 212,404.62/x
  3. Step 3: Cross multiply
    348,291.85x = 480,695.29 × 212,404.62
  4. Step 4: Simplify right side
    348,291.85x = 102,101,902,476.35
  5. Step 5: Solve for x
    x = 102,101,902,476.35/348,291.85
  6. Step 6: Final answer
    x = 293,150.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.