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Finding the Fourth Proportional to 328,760.10, 493,103.70 and 269,492.40

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Solution

The fourth proportional to 328,760.10, 493,103.70 and 269,492.40 is: 404,208.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,760.10 : 493,103.70 = 269,492.40 : x
  2. Step 2: Convert to fraction form
    328,760.10/493,103.70 = 269,492.40/x
  3. Step 3: Cross multiply
    328,760.10x = 493,103.70 × 269,492.40
  4. Step 4: Simplify right side
    328,760.10x = 132,887,699,561.88
  5. Step 5: Solve for x
    x = 132,887,699,561.88/328,760.10
  6. Step 6: Final answer
    x = 404,208.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.