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Finding the Fourth Proportional to 228,735.61, 343,221.06 and 108,928.42

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Solution

The fourth proportional to 228,735.61, 343,221.06 and 108,928.42 is: 163,448.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,735.61 : 343,221.06 = 108,928.42 : x
  2. Step 2: Convert to fraction form
    228,735.61/343,221.06 = 108,928.42/x
  3. Step 3: Cross multiply
    228,735.61x = 343,221.06 × 108,928.42
  4. Step 4: Simplify right side
    228,735.61x = 37,386,527,776.53
  5. Step 5: Solve for x
    x = 37,386,527,776.53/228,735.61
  6. Step 6: Final answer
    x = 163,448.65

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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.