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Finding the Fourth Proportional to 358,990.83, 495,385.08 and 197,836.88

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Solution

The fourth proportional to 358,990.83, 495,385.08 and 197,836.88 is: 273,002.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,990.83 : 495,385.08 = 197,836.88 : x
  2. Step 2: Convert to fraction form
    358,990.83/495,385.08 = 197,836.88/x
  3. Step 3: Cross multiply
    358,990.83x = 495,385.08 × 197,836.88
  4. Step 4: Simplify right side
    358,990.83x = 98,005,436,148.83
  5. Step 5: Solve for x
    x = 98,005,436,148.83/358,990.83
  6. Step 6: Final answer
    x = 273,002.62

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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.