Home / 272,730.69-408,815.34-120,999.23

Finding the Fourth Proportional to 272,730.69, 408,815.34 and 120,999.23

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Solution

The fourth proportional to 272,730.69, 408,815.34 and 120,999.23 is: 181,374.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,730.69 : 408,815.34 = 120,999.23 : x
  2. Step 2: Convert to fraction form
    272,730.69/408,815.34 = 120,999.23/x
  3. Step 3: Cross multiply
    272,730.69x = 408,815.34 × 120,999.23
  4. Step 4: Simplify right side
    272,730.69x = 49,466,338,703.12
  5. Step 5: Solve for x
    x = 49,466,338,703.12/272,730.69
  6. Step 6: Final answer
    x = 181,374.30

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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.