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Finding the Fourth Proportional to 308,347.89, 425,591.19 and 200,730.48

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Solution

The fourth proportional to 308,347.89, 425,591.19 and 200,730.48 is: 277,054.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,347.89 : 425,591.19 = 200,730.48 : x
  2. Step 2: Convert to fraction form
    308,347.89/425,591.19 = 200,730.48/x
  3. Step 3: Cross multiply
    308,347.89x = 425,591.19 × 200,730.48
  4. Step 4: Simplify right side
    308,347.89x = 85,429,123,852.47
  5. Step 5: Solve for x
    x = 85,429,123,852.47/308,347.89
  6. Step 6: Final answer
    x = 277,054.35

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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.