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Finding the Fourth Proportional to 307,441, 424,268.58 and 173,305

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Solution

The fourth proportional to 307,441, 424,268.58 and 173,305 is: 239,160.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,441 : 424,268.58 = 173,305 : x
  2. Step 2: Convert to fraction form
    307,441/424,268.58 = 173,305/x
  3. Step 3: Cross multiply
    307,441x = 424,268.58 × 173,305
  4. Step 4: Simplify right side
    307,441x = 73,527,866,256.90
  5. Step 5: Solve for x
    x = 73,527,866,256.90/307,441
  6. Step 6: Final answer
    x = 239,160.90

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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.