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Finding the Fourth Proportional to 253,150.32, 349,354.44 and 139,977.12

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Solution

The fourth proportional to 253,150.32, 349,354.44 and 139,977.12 is: 193,172.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,150.32 : 349,354.44 = 139,977.12 : x
  2. Step 2: Convert to fraction form
    253,150.32/349,354.44 = 139,977.12/x
  3. Step 3: Cross multiply
    253,150.32x = 349,354.44 × 139,977.12
  4. Step 4: Simplify right side
    253,150.32x = 48,901,628,370.41
  5. Step 5: Solve for x
    x = 48,901,628,370.41/253,150.32
  6. Step 6: Final answer
    x = 193,172.30

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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.