Home / 397,365.20-596,153.40-172,629.20

Finding the Fourth Proportional to 397,365.20, 596,153.40 and 172,629.20

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Solution

The fourth proportional to 397,365.20, 596,153.40 and 172,629.20 is: 258,989.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,365.20 : 596,153.40 = 172,629.20 : x
  2. Step 2: Convert to fraction form
    397,365.20/596,153.40 = 172,629.20/x
  3. Step 3: Cross multiply
    397,365.20x = 596,153.40 × 172,629.20
  4. Step 4: Simplify right side
    397,365.20x = 102,913,484,519.28
  5. Step 5: Solve for x
    x = 102,913,484,519.28/397,365.20
  6. Step 6: Final answer
    x = 258,989.68

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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.