Home / 439,021.52-658,463.32-139,462.64

Finding the Fourth Proportional to 439,021.52, 658,463.32 and 139,462.64

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Solution

The fourth proportional to 439,021.52, 658,463.32 and 139,462.64 is: 209,172.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,021.52 : 658,463.32 = 139,462.64 : x
  2. Step 2: Convert to fraction form
    439,021.52/658,463.32 = 139,462.64/x
  3. Step 3: Cross multiply
    439,021.52x = 658,463.32 × 139,462.64
  4. Step 4: Simplify right side
    439,021.52x = 91,831,032,950.36
  5. Step 5: Solve for x
    x = 91,831,032,950.36/439,021.52
  6. Step 6: Final answer
    x = 209,172.05

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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.