Home / 272,208.94-408,396.30-139,182.64

Finding the Fourth Proportional to 272,208.94, 408,396.30 and 139,182.64

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Solution

The fourth proportional to 272,208.94, 408,396.30 and 139,182.64 is: 208,816.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,208.94 : 408,396.30 = 139,182.64 : x
  2. Step 2: Convert to fraction form
    272,208.94/408,396.30 = 139,182.64/x
  3. Step 3: Cross multiply
    272,208.94x = 408,396.30 × 139,182.64
  4. Step 4: Simplify right side
    272,208.94x = 56,841,675,200.23
  5. Step 5: Solve for x
    x = 56,841,675,200.23/272,208.94
  6. Step 6: Final answer
    x = 208,816.34

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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.