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Finding the Fourth Proportional to 376,017.57, 518,871.69 and 220,952.45

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Solution

The fourth proportional to 376,017.57, 518,871.69 and 220,952.45 is: 304,895.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,017.57 : 518,871.69 = 220,952.45 : x
  2. Step 2: Convert to fraction form
    376,017.57/518,871.69 = 220,952.45/x
  3. Step 3: Cross multiply
    376,017.57x = 518,871.69 × 220,952.45
  4. Step 4: Simplify right side
    376,017.57x = 114,645,968,546.78
  5. Step 5: Solve for x
    x = 114,645,968,546.78/376,017.57
  6. Step 6: Final answer
    x = 304,895.24

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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.