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Finding the Fourth Proportional to 303,678.92, 455,471.66 and 101,278.58

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Solution

The fourth proportional to 303,678.92, 455,471.66 and 101,278.58 is: 151,902.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,678.92 : 455,471.66 = 101,278.58 : x
  2. Step 2: Convert to fraction form
    303,678.92/455,471.66 = 101,278.58/x
  3. Step 3: Cross multiply
    303,678.92x = 455,471.66 × 101,278.58
  4. Step 4: Simplify right side
    303,678.92x = 46,129,521,642.20
  5. Step 5: Solve for x
    x = 46,129,521,642.20/303,678.92
  6. Step 6: Final answer
    x = 151,902.28

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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.