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Finding the Fourth Proportional to 484,153.86, 668,122.74 and 269,289.30

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Solution

The fourth proportional to 484,153.86, 668,122.74 and 269,289.30 is: 371,613.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,153.86 : 668,122.74 = 269,289.30 : x
  2. Step 2: Convert to fraction form
    484,153.86/668,122.74 = 269,289.30/x
  3. Step 3: Cross multiply
    484,153.86x = 668,122.74 × 269,289.30
  4. Step 4: Simplify right side
    484,153.86x = 179,918,304,968.68
  5. Step 5: Solve for x
    x = 179,918,304,968.68/484,153.86
  6. Step 6: Final answer
    x = 371,613.90

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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.