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Finding the Fourth Proportional to 303,944.96, 456,009.60 and 215,370.08

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Solution

The fourth proportional to 303,944.96, 456,009.60 and 215,370.08 is: 323,120.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,944.96 : 456,009.60 = 215,370.08 : x
  2. Step 2: Convert to fraction form
    303,944.96/456,009.60 = 215,370.08/x
  3. Step 3: Cross multiply
    303,944.96x = 456,009.60 × 215,370.08
  4. Step 4: Simplify right side
    303,944.96x = 98,210,824,032.77
  5. Step 5: Solve for x
    x = 98,210,824,032.77/303,944.96
  6. Step 6: Final answer
    x = 323,120.42

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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.