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Finding the Fourth Proportional to 272,586.17, 408,879.16 and 72,901.37

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Solution

The fourth proportional to 272,586.17, 408,879.16 and 72,901.37 is: 109,352.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,586.17 : 408,879.16 = 72,901.37 : x
  2. Step 2: Convert to fraction form
    272,586.17/408,879.16 = 72,901.37/x
  3. Step 3: Cross multiply
    272,586.17x = 408,879.16 × 72,901.37
  4. Step 4: Simplify right side
    272,586.17x = 29,807,849,468.45
  5. Step 5: Solve for x
    x = 29,807,849,468.45/272,586.17
  6. Step 6: Final answer
    x = 109,352.02

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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.