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Finding the Fourth Proportional to 229,575.80, 344,412.30 and 69,638.60

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Solution

The fourth proportional to 229,575.80, 344,412.30 and 69,638.60 is: 104,472.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,575.80 : 344,412.30 = 69,638.60 : x
  2. Step 2: Convert to fraction form
    229,575.80/344,412.30 = 69,638.60/x
  3. Step 3: Cross multiply
    229,575.80x = 344,412.30 × 69,638.60
  4. Step 4: Simplify right side
    229,575.80x = 23,984,390,394.78
  5. Step 5: Solve for x
    x = 23,984,390,394.78/229,575.80
  6. Step 6: Final answer
    x = 104,472.64

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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.