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Finding the Fourth Proportional to 377,676.54, 521,182.08 and 207,909.36

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Solution

The fourth proportional to 377,676.54, 521,182.08 and 207,909.36 is: 286,908.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,676.54 : 521,182.08 = 207,909.36 : x
  2. Step 2: Convert to fraction form
    377,676.54/521,182.08 = 207,909.36/x
  3. Step 3: Cross multiply
    377,676.54x = 521,182.08 × 207,909.36
  4. Step 4: Simplify right side
    377,676.54x = 108,358,632,696.27
  5. Step 5: Solve for x
    x = 108,358,632,696.27/377,676.54
  6. Step 6: Final answer
    x = 286,908.56

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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.