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Finding the Fourth Proportional to 272,006.10, 408,009.15 and 216,018.90

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Solution

The fourth proportional to 272,006.10, 408,009.15 and 216,018.90 is: 324,028.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,006.10 : 408,009.15 = 216,018.90 : x
  2. Step 2: Convert to fraction form
    272,006.10/408,009.15 = 216,018.90/x
  3. Step 3: Cross multiply
    272,006.10x = 408,009.15 × 216,018.90
  4. Step 4: Simplify right side
    272,006.10x = 88,137,687,772.94
  5. Step 5: Solve for x
    x = 88,137,687,772.94/272,006.10
  6. Step 6: Final answer
    x = 324,028.35

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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.