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Finding the Fourth Proportional to 358,380.20, 494,564.76 and 197,235.20

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Solution

The fourth proportional to 358,380.20, 494,564.76 and 197,235.20 is: 272,184.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,380.20 : 494,564.76 = 197,235.20 : x
  2. Step 2: Convert to fraction form
    358,380.20/494,564.76 = 197,235.20/x
  3. Step 3: Cross multiply
    358,380.20x = 494,564.76 × 197,235.20
  4. Step 4: Simplify right side
    358,380.20x = 97,545,579,351.55
  5. Step 5: Solve for x
    x = 97,545,579,351.55/358,380.20
  6. Step 6: Final answer
    x = 272,184.62

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1.5x scale

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.