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Finding the Fourth Proportional to 349,149.28, 481,870.96 and 213,154.72

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Solution

The fourth proportional to 349,149.28, 481,870.96 and 213,154.72 is: 294,180.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,149.28 : 481,870.96 = 213,154.72 : x
  2. Step 2: Convert to fraction form
    349,149.28/481,870.96 = 213,154.72/x
  3. Step 3: Cross multiply
    349,149.28x = 481,870.96 × 213,154.72
  4. Step 4: Simplify right side
    349,149.28x = 102,713,069,554.93
  5. Step 5: Solve for x
    x = 102,713,069,554.93/349,149.28
  6. Step 6: Final answer
    x = 294,180.96

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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.