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Finding the Fourth Proportional to 258,627.45, 356,836.14 and 151,223.88

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Solution

The fourth proportional to 258,627.45, 356,836.14 and 151,223.88 is: 208,648.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,627.45 : 356,836.14 = 151,223.88 : x
  2. Step 2: Convert to fraction form
    258,627.45/356,836.14 = 151,223.88/x
  3. Step 3: Cross multiply
    258,627.45x = 356,836.14 × 151,223.88
  4. Step 4: Simplify right side
    258,627.45x = 53,962,145,615.02
  5. Step 5: Solve for x
    x = 53,962,145,615.02/258,627.45
  6. Step 6: Final answer
    x = 208,648.18

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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.