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Finding the Fourth Proportional to 272,951.63, 408,818.08 and 209,302.98

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Solution

The fourth proportional to 272,951.63, 408,818.08 and 209,302.98 is: 313,487.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,951.63 : 408,818.08 = 209,302.98 : x
  2. Step 2: Convert to fraction form
    272,951.63/408,818.08 = 209,302.98/x
  3. Step 3: Cross multiply
    272,951.63x = 408,818.08 × 209,302.98
  4. Step 4: Simplify right side
    272,951.63x = 85,566,842,421.88
  5. Step 5: Solve for x
    x = 85,566,842,421.88/272,951.63
  6. Step 6: Final answer
    x = 313,487.20

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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.