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Finding the Fourth Proportional to 272,006.20, 408,009.30 and 266,476.60

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Solution

The fourth proportional to 272,006.20, 408,009.30 and 266,476.60 is: 399,714.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,006.20 : 408,009.30 = 266,476.60 : x
  2. Step 2: Convert to fraction form
    272,006.20/408,009.30 = 266,476.60/x
  3. Step 3: Cross multiply
    272,006.20x = 408,009.30 × 266,476.60
  4. Step 4: Simplify right side
    272,006.20x = 108,724,931,032.38
  5. Step 5: Solve for x
    x = 108,724,931,032.38/272,006.20
  6. Step 6: Final answer
    x = 399,714.90

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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.