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Finding the Fourth Proportional to 277,628.83, 383,135.64 and 156,788.29

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Solution

The fourth proportional to 277,628.83, 383,135.64 and 156,788.29 is: 216,372.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,628.83 : 383,135.64 = 156,788.29 : x
  2. Step 2: Convert to fraction form
    277,628.83/383,135.64 = 156,788.29/x
  3. Step 3: Cross multiply
    277,628.83x = 383,135.64 × 156,788.29
  4. Step 4: Simplify right side
    277,628.83x = 60,071,181,833.66
  5. Step 5: Solve for x
    x = 60,071,181,833.66/277,628.83
  6. Step 6: Final answer
    x = 216,372.28

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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.