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Finding the Fourth Proportional to 229,511.60, 344,267.40 and 71,739.80

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Solution

The fourth proportional to 229,511.60, 344,267.40 and 71,739.80 is: 107,609.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,511.60 : 344,267.40 = 71,739.80 : x
  2. Step 2: Convert to fraction form
    229,511.60/344,267.40 = 71,739.80/x
  3. Step 3: Cross multiply
    229,511.60x = 344,267.40 × 71,739.80
  4. Step 4: Simplify right side
    229,511.60x = 24,697,674,422.52
  5. Step 5: Solve for x
    x = 24,697,674,422.52/229,511.60
  6. Step 6: Final answer
    x = 107,609.70

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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.