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Finding the Fourth Proportional to 286,161.49, 395,008.89 and 245,712.79

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Solution

The fourth proportional to 286,161.49, 395,008.89 and 245,712.79 is: 339,174.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,161.49 : 395,008.89 = 245,712.79 : x
  2. Step 2: Convert to fraction form
    286,161.49/395,008.89 = 245,712.79/x
  3. Step 3: Cross multiply
    286,161.49x = 395,008.89 × 245,712.79
  4. Step 4: Simplify right side
    286,161.49x = 97,058,736,436.70
  5. Step 5: Solve for x
    x = 97,058,736,436.70/286,161.49
  6. Step 6: Final answer
    x = 339,174.70

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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.