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Finding the Fourth Proportional to 451,990.05, 623,744.31 and 248,044.29

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Solution

The fourth proportional to 451,990.05, 623,744.31 and 248,044.29 is: 342,300.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,990.05 : 623,744.31 = 248,044.29 : x
  2. Step 2: Convert to fraction form
    451,990.05/623,744.31 = 248,044.29/x
  3. Step 3: Cross multiply
    451,990.05x = 623,744.31 × 248,044.29
  4. Step 4: Simplify right side
    451,990.05x = 154,716,214,515.49
  5. Step 5: Solve for x
    x = 154,716,214,515.49/451,990.05
  6. Step 6: Final answer
    x = 342,300.05

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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.