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Finding the Fourth Proportional to 272,030.10, 408,045.15 and 269,405.70

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Solution

The fourth proportional to 272,030.10, 408,045.15 and 269,405.70 is: 404,108.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,030.10 : 408,045.15 = 269,405.70 : x
  2. Step 2: Convert to fraction form
    272,030.10/408,045.15 = 269,405.70/x
  3. Step 3: Cross multiply
    272,030.10x = 408,045.15 × 269,405.70
  4. Step 4: Simplify right side
    272,030.10x = 109,929,689,267.36
  5. Step 5: Solve for x
    x = 109,929,689,267.36/272,030.10
  6. Step 6: Final answer
    x = 404,108.55

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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.