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Finding the Fourth Proportional to 270,493.60, 405,740.40 and 228,503.20

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Solution

The fourth proportional to 270,493.60, 405,740.40 and 228,503.20 is: 342,754.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,493.60 : 405,740.40 = 228,503.20 : x
  2. Step 2: Convert to fraction form
    270,493.60/405,740.40 = 228,503.20/x
  3. Step 3: Cross multiply
    270,493.60x = 405,740.40 × 228,503.20
  4. Step 4: Simplify right side
    270,493.60x = 92,712,979,769.28
  5. Step 5: Solve for x
    x = 92,712,979,769.28/270,493.60
  6. Step 6: Final answer
    x = 342,754.80

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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.