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Finding the Fourth Proportional to 303,688.60, 455,486.24 and 101,288.28

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Solution

The fourth proportional to 303,688.60, 455,486.24 and 101,288.28 is: 151,916.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,688.60 : 455,486.24 = 101,288.28 : x
  2. Step 2: Convert to fraction form
    303,688.60/455,486.24 = 101,288.28/x
  3. Step 3: Cross multiply
    303,688.60x = 455,486.24 × 101,288.28
  4. Step 4: Simplify right side
    303,688.60x = 46,135,417,813.27
  5. Step 5: Solve for x
    x = 46,135,417,813.27/303,688.60
  6. Step 6: Final answer
    x = 151,916.86

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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.