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Finding the Fourth Proportional to 353,492.52, 487,658.52 and 210,171.12

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Solution

The fourth proportional to 353,492.52, 487,658.52 and 210,171.12 is: 289,940.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,492.52 : 487,658.52 = 210,171.12 : x
  2. Step 2: Convert to fraction form
    353,492.52/487,658.52 = 210,171.12/x
  3. Step 3: Cross multiply
    353,492.52x = 487,658.52 × 210,171.12
  4. Step 4: Simplify right side
    353,492.52x = 102,491,737,325.94
  5. Step 5: Solve for x
    x = 102,491,737,325.94/353,492.52
  6. Step 6: Final answer
    x = 289,940.33

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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.