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Finding the Fourth Proportional to 151,870.60, 228,000.30 and 80,849.80

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Solution

The fourth proportional to 151,870.60, 228,000.30 and 80,849.80 is: 121,378.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,870.60 : 228,000.30 = 80,849.80 : x
  2. Step 2: Convert to fraction form
    151,870.60/228,000.30 = 80,849.80/x
  3. Step 3: Cross multiply
    151,870.60x = 228,000.30 × 80,849.80
  4. Step 4: Simplify right side
    151,870.60x = 18,433,778,654.94
  5. Step 5: Solve for x
    x = 18,433,778,654.94/151,870.60
  6. Step 6: Final answer
    x = 121,378.19

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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.