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Finding the Fourth Proportional to 303,495.73, 455,243.29 and 90,262.77

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Solution

The fourth proportional to 303,495.73, 455,243.29 and 90,262.77 is: 135,394.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,495.73 : 455,243.29 = 90,262.77 : x
  2. Step 2: Convert to fraction form
    303,495.73/455,243.29 = 90,262.77/x
  3. Step 3: Cross multiply
    303,495.73x = 455,243.29 × 90,262.77
  4. Step 4: Simplify right side
    303,495.73x = 41,091,521,007.24
  5. Step 5: Solve for x
    x = 41,091,521,007.24/303,495.73
  6. Step 6: Final answer
    x = 135,394.07

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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.