Home / 309,869.37-427,628.22-173,911.74

Finding the Fourth Proportional to 309,869.37, 427,628.22 and 173,911.74

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Solution

The fourth proportional to 309,869.37, 427,628.22 and 173,911.74 is: 240,002.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,869.37 : 427,628.22 = 173,911.74 : x
  2. Step 2: Convert to fraction form
    309,869.37/427,628.22 = 173,911.74/x
  3. Step 3: Cross multiply
    309,869.37x = 427,628.22 × 173,911.74
  4. Step 4: Simplify right side
    309,869.37x = 74,369,567,813.30
  5. Step 5: Solve for x
    x = 74,369,567,813.30/309,869.37
  6. Step 6: Final answer
    x = 240,002.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.