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Finding the Fourth Proportional to 272,360.04, 408,578.34 and 72,686.94

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Solution

The fourth proportional to 272,360.04, 408,578.34 and 72,686.94 is: 109,040.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,360.04 : 408,578.34 = 72,686.94 : x
  2. Step 2: Convert to fraction form
    272,360.04/408,578.34 = 72,686.94/x
  3. Step 3: Cross multiply
    272,360.04x = 408,578.34 × 72,686.94
  4. Step 4: Simplify right side
    272,360.04x = 29,698,309,284.88
  5. Step 5: Solve for x
    x = 29,698,309,284.88/272,360.04
  6. Step 6: Final answer
    x = 109,040.63

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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.