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Finding the Fourth Proportional to 349,969.60, 524,954.40 and 172,822.60

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Solution

The fourth proportional to 349,969.60, 524,954.40 and 172,822.60 is: 259,233.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,969.60 : 524,954.40 = 172,822.60 : x
  2. Step 2: Convert to fraction form
    349,969.60/524,954.40 = 172,822.60/x
  3. Step 3: Cross multiply
    349,969.60x = 524,954.40 × 172,822.60
  4. Step 4: Simplify right side
    349,969.60x = 90,723,984,289.44
  5. Step 5: Solve for x
    x = 90,723,984,289.44/349,969.60
  6. Step 6: Final answer
    x = 259,233.90

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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.