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Finding the Fourth Proportional to 368,419.98, 508,671.02 and 271,635.50

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Solution

The fourth proportional to 368,419.98, 508,671.02 and 271,635.50 is: 375,042.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,419.98 : 508,671.02 = 271,635.50 : x
  2. Step 2: Convert to fraction form
    368,419.98/508,671.02 = 271,635.50/x
  3. Step 3: Cross multiply
    368,419.98x = 508,671.02 × 271,635.50
  4. Step 4: Simplify right side
    368,419.98x = 138,173,106,853.21
  5. Step 5: Solve for x
    x = 138,173,106,853.21/368,419.98
  6. Step 6: Final answer
    x = 375,042.38

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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.