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Finding the Fourth Proportional to 349,540.79, 482,359.08 and 194,488.64

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Solution

The fourth proportional to 349,540.79, 482,359.08 and 194,488.64 is: 268,390.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,540.79 : 482,359.08 = 194,488.64 : x
  2. Step 2: Convert to fraction form
    349,540.79/482,359.08 = 194,488.64/x
  3. Step 3: Cross multiply
    349,540.79x = 482,359.08 × 194,488.64
  4. Step 4: Simplify right side
    349,540.79x = 93,813,358,589.60
  5. Step 5: Solve for x
    x = 93,813,358,589.60/349,540.79
  6. Step 6: Final answer
    x = 268,390.31

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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.