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Finding the Fourth Proportional to 155,961.60, 233,942.40 and 56,234.40

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Solution

The fourth proportional to 155,961.60, 233,942.40 and 56,234.40 is: 84,351.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,961.60 : 233,942.40 = 56,234.40 : x
  2. Step 2: Convert to fraction form
    155,961.60/233,942.40 = 56,234.40/x
  3. Step 3: Cross multiply
    155,961.60x = 233,942.40 × 56,234.40
  4. Step 4: Simplify right side
    155,961.60x = 13,155,610,498.56
  5. Step 5: Solve for x
    x = 13,155,610,498.56/155,961.60
  6. Step 6: Final answer
    x = 84,351.60

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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.