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Finding the Fourth Proportional to 358,336.80, 494,484.84 and 197,165.64

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Solution

The fourth proportional to 358,336.80, 494,484.84 and 197,165.64 is: 272,077.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,336.80 : 494,484.84 = 197,165.64 : x
  2. Step 2: Convert to fraction form
    358,336.80/494,484.84 = 197,165.64/x
  3. Step 3: Cross multiply
    358,336.80x = 494,484.84 × 197,165.64
  4. Step 4: Simplify right side
    358,336.80x = 97,495,419,948.90
  5. Step 5: Solve for x
    x = 97,495,419,948.90/358,336.80
  6. Step 6: Final answer
    x = 272,077.61

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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.