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Finding the Fourth Proportional to 358,314.70, 494,476.64 and 197,165.61

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Solution

The fourth proportional to 358,314.70, 494,476.64 and 197,165.61 is: 272,089.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,314.70 : 494,476.64 = 197,165.61 : x
  2. Step 2: Convert to fraction form
    358,314.70/494,476.64 = 197,165.61/x
  3. Step 3: Cross multiply
    358,314.70x = 494,476.64 × 197,165.61
  4. Step 4: Simplify right side
    358,314.70x = 97,493,788,356.35
  5. Step 5: Solve for x
    x = 97,493,788,356.35/358,314.70
  6. Step 6: Final answer
    x = 272,089.84

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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.