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Finding the Fourth Proportional to 288,422.35, 432,030.07 and 231,957.25

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Solution

The fourth proportional to 288,422.35, 432,030.07 and 231,957.25 is: 347,450.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,422.35 : 432,030.07 = 231,957.25 : x
  2. Step 2: Convert to fraction form
    288,422.35/432,030.07 = 231,957.25/x
  3. Step 3: Cross multiply
    288,422.35x = 432,030.07 × 231,957.25
  4. Step 4: Simplify right side
    288,422.35x = 100,212,503,634.57
  5. Step 5: Solve for x
    x = 100,212,503,634.57/288,422.35
  6. Step 6: Final answer
    x = 347,450.55

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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.