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Finding the Fourth Proportional to 357,870, 493,866.84 and 196,731.84

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Solution

The fourth proportional to 357,870, 493,866.84 and 196,731.84 is: 271,493.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,870 : 493,866.84 = 196,731.84 : x
  2. Step 2: Convert to fraction form
    357,870/493,866.84 = 196,731.84/x
  3. Step 3: Cross multiply
    357,870x = 493,866.84 × 196,731.84
  4. Step 4: Simplify right side
    357,870x = 97,159,332,148.19
  5. Step 5: Solve for x
    x = 97,159,332,148.19/357,870
  6. Step 6: Final answer
    x = 271,493.37

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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.