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Finding the Fourth Proportional to 288,580.44, 432,858.35 and 281,822.61

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Solution

The fourth proportional to 288,580.44, 432,858.35 and 281,822.61 is: 422,721.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,580.44 : 432,858.35 = 281,822.61 : x
  2. Step 2: Convert to fraction form
    288,580.44/432,858.35 = 281,822.61/x
  3. Step 3: Cross multiply
    288,580.44x = 432,858.35 × 281,822.61
  4. Step 4: Simplify right side
    288,580.44x = 121,989,267,793.00
  5. Step 5: Solve for x
    x = 121,989,267,793.00/288,580.44
  6. Step 6: Final answer
    x = 422,721.89

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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.