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Finding the Fourth Proportional to 331,485.30, 497,227.95 and 205,514.10

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Solution

The fourth proportional to 331,485.30, 497,227.95 and 205,514.10 is: 308,271.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,485.30 : 497,227.95 = 205,514.10 : x
  2. Step 2: Convert to fraction form
    331,485.30/497,227.95 = 205,514.10/x
  3. Step 3: Cross multiply
    331,485.30x = 497,227.95 × 205,514.10
  4. Step 4: Simplify right side
    331,485.30x = 102,187,354,639.10
  5. Step 5: Solve for x
    x = 102,187,354,639.10/331,485.30
  6. Step 6: Final answer
    x = 308,271.15

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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.