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Finding the Fourth Proportional to 253,146.60, 379,763.64 and 103,468.32

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Solution

The fourth proportional to 253,146.60, 379,763.64 and 103,468.32 is: 155,220.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,146.60 : 379,763.64 = 103,468.32 : x
  2. Step 2: Convert to fraction form
    253,146.60/379,763.64 = 103,468.32/x
  3. Step 3: Cross multiply
    253,146.60x = 379,763.64 × 103,468.32
  4. Step 4: Simplify right side
    253,146.60x = 39,293,505,827.88
  5. Step 5: Solve for x
    x = 39,293,505,827.88/253,146.60
  6. Step 6: Final answer
    x = 155,220.36

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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.