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Finding the Fourth Proportional to 307,610.64, 424,486.44 and 173,466

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Solution

The fourth proportional to 307,610.64, 424,486.44 and 173,466 is: 239,373.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,610.64 : 424,486.44 = 173,466 : x
  2. Step 2: Convert to fraction form
    307,610.64/424,486.44 = 173,466/x
  3. Step 3: Cross multiply
    307,610.64x = 424,486.44 × 173,466
  4. Step 4: Simplify right side
    307,610.64x = 73,633,964,801.04
  5. Step 5: Solve for x
    x = 73,633,964,801.04/307,610.64
  6. Step 6: Final answer
    x = 239,373.92

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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.