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Finding the Fourth Proportional to 442,916.30, 664,374.45 and 243,850.70

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Solution

The fourth proportional to 442,916.30, 664,374.45 and 243,850.70 is: 365,776.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,916.30 : 664,374.45 = 243,850.70 : x
  2. Step 2: Convert to fraction form
    442,916.30/664,374.45 = 243,850.70/x
  3. Step 3: Cross multiply
    442,916.30x = 664,374.45 × 243,850.70
  4. Step 4: Simplify right side
    442,916.30x = 162,008,174,694.62
  5. Step 5: Solve for x
    x = 162,008,174,694.62/442,916.30
  6. Step 6: Final answer
    x = 365,776.05

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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.