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Finding the Fourth Proportional to 484,525.40, 668,638.40 and 269,665.52

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Solution

The fourth proportional to 484,525.40, 668,638.40 and 269,665.52 is: 372,134.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,525.40 : 668,638.40 = 269,665.52 : x
  2. Step 2: Convert to fraction form
    484,525.40/668,638.40 = 269,665.52/x
  3. Step 3: Cross multiply
    484,525.40x = 668,638.40 × 269,665.52
  4. Step 4: Simplify right side
    484,525.40x = 180,308,721,827.97
  5. Step 5: Solve for x
    x = 180,308,721,827.97/484,525.40
  6. Step 6: Final answer
    x = 372,134.72

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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.