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Finding the Fourth Proportional to 272,042.40, 408,063.60 and 242,493.60

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Solution

The fourth proportional to 272,042.40, 408,063.60 and 242,493.60 is: 363,740.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,042.40 : 408,063.60 = 242,493.60 : x
  2. Step 2: Convert to fraction form
    272,042.40/408,063.60 = 242,493.60/x
  3. Step 3: Cross multiply
    272,042.40x = 408,063.60 × 242,493.60
  4. Step 4: Simplify right side
    272,042.40x = 98,952,811,392.96
  5. Step 5: Solve for x
    x = 98,952,811,392.96/272,042.40
  6. Step 6: Final answer
    x = 363,740.40

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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.