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Finding the Fourth Proportional to 253,395.62, 379,336.20 and 153,252.90

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Solution

The fourth proportional to 253,395.62, 379,336.20 and 153,252.90 is: 229,421.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,395.62 : 379,336.20 = 153,252.90 : x
  2. Step 2: Convert to fraction form
    253,395.62/379,336.20 = 153,252.90/x
  3. Step 3: Cross multiply
    253,395.62x = 379,336.20 × 153,252.90
  4. Step 4: Simplify right side
    253,395.62x = 58,134,372,724.98
  5. Step 5: Solve for x
    x = 58,134,372,724.98/253,395.62
  6. Step 6: Final answer
    x = 229,421.38

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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.