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Finding the Fourth Proportional to 288,939.72, 432,822.06 and 235,821

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Solution

The fourth proportional to 288,939.72, 432,822.06 and 235,821 is: 353,251.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,939.72 : 432,822.06 = 235,821 : x
  2. Step 2: Convert to fraction form
    288,939.72/432,822.06 = 235,821/x
  3. Step 3: Cross multiply
    288,939.72x = 432,822.06 × 235,821
  4. Step 4: Simplify right side
    288,939.72x = 102,068,531,011.26
  5. Step 5: Solve for x
    x = 102,068,531,011.26/288,939.72
  6. Step 6: Final answer
    x = 353,251.99

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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.