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Finding the Fourth Proportional to 298,851.90, 448,277.85 and 269,327.40

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Solution

The fourth proportional to 298,851.90, 448,277.85 and 269,327.40 is: 403,991.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,851.90 : 448,277.85 = 269,327.40 : x
  2. Step 2: Convert to fraction form
    298,851.90/448,277.85 = 269,327.40/x
  3. Step 3: Cross multiply
    298,851.90x = 448,277.85 × 269,327.40
  4. Step 4: Simplify right side
    298,851.90x = 120,733,507,818.09
  5. Step 5: Solve for x
    x = 120,733,507,818.09/298,851.90
  6. Step 6: Final answer
    x = 403,991.10

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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.