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Finding the Fourth Proportional to 255,619.60, 383,429.40 and 228,063.40

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Solution

The fourth proportional to 255,619.60, 383,429.40 and 228,063.40 is: 342,095.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,619.60 : 383,429.40 = 228,063.40 : x
  2. Step 2: Convert to fraction form
    255,619.60/383,429.40 = 228,063.40/x
  3. Step 3: Cross multiply
    255,619.60x = 383,429.40 × 228,063.40
  4. Step 4: Simplify right side
    255,619.60x = 87,446,212,623.96
  5. Step 5: Solve for x
    x = 87,446,212,623.96/255,619.60
  6. Step 6: Final answer
    x = 342,095.10

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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.