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Finding the Fourth Proportional to 272,003.80, 408,005.70 and 197,354.20

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Solution

The fourth proportional to 272,003.80, 408,005.70 and 197,354.20 is: 296,031.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,003.80 : 408,005.70 = 197,354.20 : x
  2. Step 2: Convert to fraction form
    272,003.80/408,005.70 = 197,354.20/x
  3. Step 3: Cross multiply
    272,003.80x = 408,005.70 × 197,354.20
  4. Step 4: Simplify right side
    272,003.80x = 80,521,638,518.94
  5. Step 5: Solve for x
    x = 80,521,638,518.94/272,003.80
  6. Step 6: Final answer
    x = 296,031.30

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1.5x scale

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.