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Finding the Fourth Proportional to 349,386.44, 482,154.92 and 198,491.72

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Solution

The fourth proportional to 349,386.44, 482,154.92 and 198,491.72 is: 273,919.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,386.44 : 482,154.92 = 198,491.72 : x
  2. Step 2: Convert to fraction form
    349,386.44/482,154.92 = 198,491.72/x
  3. Step 3: Cross multiply
    349,386.44x = 482,154.92 × 198,491.72
  4. Step 4: Simplify right side
    349,386.44x = 95,703,759,377.26
  5. Step 5: Solve for x
    x = 95,703,759,377.26/349,386.44
  6. Step 6: Final answer
    x = 273,919.50

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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.