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Finding the Fourth Proportional to 303,539.91, 418,495.66 and 248,890.73

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Solution

The fourth proportional to 303,539.91, 418,495.66 and 248,890.73 is: 343,149.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,539.91 : 418,495.66 = 248,890.73 : x
  2. Step 2: Convert to fraction form
    303,539.91/418,495.66 = 248,890.73/x
  3. Step 3: Cross multiply
    303,539.91x = 418,495.66 × 248,890.73
  4. Step 4: Simplify right side
    303,539.91x = 104,159,689,004.54
  5. Step 5: Solve for x
    x = 104,159,689,004.54/303,539.91
  6. Step 6: Final answer
    x = 343,149.90

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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.