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Finding the Fourth Proportional to 357,915.05, 493,901.79 and 196,770.01

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Solution

The fourth proportional to 357,915.05, 493,901.79 and 196,770.01 is: 271,531.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,915.05 : 493,901.79 = 196,770.01 : x
  2. Step 2: Convert to fraction form
    357,915.05/493,901.79 = 196,770.01/x
  3. Step 3: Cross multiply
    357,915.05x = 493,901.79 × 196,770.01
  4. Step 4: Simplify right side
    357,915.05x = 97,185,057,687.81
  5. Step 5: Solve for x
    x = 97,185,057,687.81/357,915.05
  6. Step 6: Final answer
    x = 271,531.07

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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.