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Finding the Fourth Proportional to 288,354.84, 397,963.50 and 239,871.16

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Solution

The fourth proportional to 288,354.84, 397,963.50 and 239,871.16 is: 331,050.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,354.84 : 397,963.50 = 239,871.16 : x
  2. Step 2: Convert to fraction form
    288,354.84/397,963.50 = 239,871.16/x
  3. Step 3: Cross multiply
    288,354.84x = 397,963.50 × 239,871.16
  4. Step 4: Simplify right side
    288,354.84x = 95,459,966,382.66
  5. Step 5: Solve for x
    x = 95,459,966,382.66/288,354.84
  6. Step 6: Final answer
    x = 331,050.34

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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.