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Finding the Fourth Proportional to 253,101.08, 379,838.15 and 119,980.82

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Solution

The fourth proportional to 253,101.08, 379,838.15 and 119,980.82 is: 180,059.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,101.08 : 379,838.15 = 119,980.82 : x
  2. Step 2: Convert to fraction form
    253,101.08/379,838.15 = 119,980.82/x
  3. Step 3: Cross multiply
    253,101.08x = 379,838.15 × 119,980.82
  4. Step 4: Simplify right side
    253,101.08x = 45,573,293,503.90
  5. Step 5: Solve for x
    x = 45,573,293,503.90/253,101.08
  6. Step 6: Final answer
    x = 180,059.65

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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.