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Finding the Fourth Proportional to 253,207.76, 379,671.52 and 103,553.15

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Solution

The fourth proportional to 253,207.76, 379,671.52 and 103,553.15 is: 155,272.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,207.76 : 379,671.52 = 103,553.15 : x
  2. Step 2: Convert to fraction form
    253,207.76/379,671.52 = 103,553.15/x
  3. Step 3: Cross multiply
    253,207.76x = 379,671.52 × 103,553.15
  4. Step 4: Simplify right side
    253,207.76x = 39,316,180,664.19
  5. Step 5: Solve for x
    x = 39,316,180,664.19/253,207.76
  6. Step 6: Final answer
    x = 155,272.41

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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.