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Finding the Fourth Proportional to 377,796, 521,358.48 and 208,029.72

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Solution

The fourth proportional to 377,796, 521,358.48 and 208,029.72 is: 287,081.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,796 : 521,358.48 = 208,029.72 : x
  2. Step 2: Convert to fraction form
    377,796/521,358.48 = 208,029.72/x
  3. Step 3: Cross multiply
    377,796x = 521,358.48 × 208,029.72
  4. Step 4: Simplify right side
    377,796x = 108,458,058,614.03
  5. Step 5: Solve for x
    x = 108,458,058,614.03/377,796
  6. Step 6: Final answer
    x = 287,081.01

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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.