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Finding the Fourth Proportional to 358,145.45, 494,230.30 and 197,000.46

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Solution

The fourth proportional to 358,145.45, 494,230.30 and 197,000.46 is: 271,854.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,145.45 : 494,230.30 = 197,000.46 : x
  2. Step 2: Convert to fraction form
    358,145.45/494,230.30 = 197,000.46/x
  3. Step 3: Cross multiply
    358,145.45x = 494,230.30 × 197,000.46
  4. Step 4: Simplify right side
    358,145.45x = 97,363,593,974.79
  5. Step 5: Solve for x
    x = 97,363,593,974.79/358,145.45
  6. Step 6: Final answer
    x = 271,854.90

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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.