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Finding the Fourth Proportional to 253,065.36, 349,216.56 and 139,881.36

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Solution

The fourth proportional to 253,065.36, 349,216.56 and 139,881.36 is: 193,028.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,065.36 : 349,216.56 = 139,881.36 : x
  2. Step 2: Convert to fraction form
    253,065.36/349,216.56 = 139,881.36/x
  3. Step 3: Cross multiply
    253,065.36x = 349,216.56 × 139,881.36
  4. Step 4: Simplify right side
    253,065.36x = 48,848,887,347.32
  5. Step 5: Solve for x
    x = 48,848,887,347.32/253,065.36
  6. Step 6: Final answer
    x = 193,028.74

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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.