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Finding the Fourth Proportional to 199,492.40, 275,299.80 and 108,848.78

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Solution

The fourth proportional to 199,492.40, 275,299.80 and 108,848.78 is: 150,211.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,492.40 : 275,299.80 = 108,848.78 : x
  2. Step 2: Convert to fraction form
    199,492.40/275,299.80 = 108,848.78/x
  3. Step 3: Cross multiply
    199,492.40x = 275,299.80 × 108,848.78
  4. Step 4: Simplify right side
    199,492.40x = 29,966,047,364.24
  5. Step 5: Solve for x
    x = 29,966,047,364.24/199,492.40
  6. Step 6: Final answer
    x = 150,211.47

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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.