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Finding the Fourth Proportional to 152,405.70, 228,738.15 and 68,295.30

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Solution

The fourth proportional to 152,405.70, 228,738.15 and 68,295.30 is: 102,501.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,405.70 : 228,738.15 = 68,295.30 : x
  2. Step 2: Convert to fraction form
    152,405.70/228,738.15 = 68,295.30/x
  3. Step 3: Cross multiply
    152,405.70x = 228,738.15 × 68,295.30
  4. Step 4: Simplify right side
    152,405.70x = 15,621,740,575.70
  5. Step 5: Solve for x
    x = 15,621,740,575.70/152,405.70
  6. Step 6: Final answer
    x = 102,501.03

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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.