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Finding the Fourth Proportional to 306,490.35, 459,716.85 and 146,679.89

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Solution

The fourth proportional to 306,490.35, 459,716.85 and 146,679.89 is: 220,010.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,490.35 : 459,716.85 = 146,679.89 : x
  2. Step 2: Convert to fraction form
    306,490.35/459,716.85 = 146,679.89/x
  3. Step 3: Cross multiply
    306,490.35x = 459,716.85 × 146,679.89
  4. Step 4: Simplify right side
    306,490.35x = 67,431,214,690.56
  5. Step 5: Solve for x
    x = 67,431,214,690.56/306,490.35
  6. Step 6: Final answer
    x = 220,010.89

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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.