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Finding the Fourth Proportional to 432,589.66, 648,662.96 and 230,300.68

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Solution

The fourth proportional to 432,589.66, 648,662.96 and 230,300.68 is: 345,333.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,589.66 : 648,662.96 = 230,300.68 : x
  2. Step 2: Convert to fraction form
    432,589.66/648,662.96 = 230,300.68/x
  3. Step 3: Cross multiply
    432,589.66x = 648,662.96 × 230,300.68
  4. Step 4: Simplify right side
    432,589.66x = 149,387,520,778.81
  5. Step 5: Solve for x
    x = 149,387,520,778.81/432,589.66
  6. Step 6: Final answer
    x = 345,333.08

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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.