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Finding the Fourth Proportional to 484,756.81, 668,976.14 and 269,911.40

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Solution

The fourth proportional to 484,756.81, 668,976.14 and 269,911.40 is: 372,484.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,756.81 : 668,976.14 = 269,911.40 : x
  2. Step 2: Convert to fraction form
    484,756.81/668,976.14 = 269,911.40/x
  3. Step 3: Cross multiply
    484,756.81x = 668,976.14 × 269,911.40
  4. Step 4: Simplify right side
    484,756.81x = 180,564,283,843.89
  5. Step 5: Solve for x
    x = 180,564,283,843.89/484,756.81
  6. Step 6: Final answer
    x = 372,484.27

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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.