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Finding the Fourth Proportional to 291,913.92, 437,017.92 and 263,898.72

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Solution

The fourth proportional to 291,913.92, 437,017.92 and 263,898.72 is: 395,076.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,913.92 : 437,017.92 = 263,898.72 : x
  2. Step 2: Convert to fraction form
    291,913.92/437,017.92 = 263,898.72/x
  3. Step 3: Cross multiply
    291,913.92x = 437,017.92 × 263,898.72
  4. Step 4: Simplify right side
    291,913.92x = 115,328,469,705.06
  5. Step 5: Solve for x
    x = 115,328,469,705.06/291,913.92
  6. Step 6: Final answer
    x = 395,076.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.