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Finding the Fourth Proportional to 308,029.04, 424,920.85 and 194,917.40

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Solution

The fourth proportional to 308,029.04, 424,920.85 and 194,917.40 is: 268,885.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,029.04 : 424,920.85 = 194,917.40 : x
  2. Step 2: Convert to fraction form
    308,029.04/424,920.85 = 194,917.40/x
  3. Step 3: Cross multiply
    308,029.04x = 424,920.85 × 194,917.40
  4. Step 4: Simplify right side
    308,029.04x = 82,824,465,163.19
  5. Step 5: Solve for x
    x = 82,824,465,163.19/308,029.04
  6. Step 6: Final answer
    x = 268,885.25

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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.