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Finding the Fourth Proportional to 229,005.60, 343,539.60 and 79,205.70

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Solution

The fourth proportional to 229,005.60, 343,539.60 and 79,205.70 is: 118,819.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,005.60 : 343,539.60 = 79,205.70 : x
  2. Step 2: Convert to fraction form
    229,005.60/343,539.60 = 79,205.70/x
  3. Step 3: Cross multiply
    229,005.60x = 343,539.60 × 79,205.70
  4. Step 4: Simplify right side
    229,005.60x = 27,210,294,495.72
  5. Step 5: Solve for x
    x = 27,210,294,495.72/229,005.60
  6. Step 6: Final answer
    x = 118,819.34

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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.