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Finding the Fourth Proportional to 303,611.36, 455,574.65 and 123,828.68

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Solution

The fourth proportional to 303,611.36, 455,574.65 and 123,828.68 is: 185,807.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,611.36 : 455,574.65 = 123,828.68 : x
  2. Step 2: Convert to fraction form
    303,611.36/455,574.65 = 123,828.68/x
  3. Step 3: Cross multiply
    303,611.36x = 455,574.65 × 123,828.68
  4. Step 4: Simplify right side
    303,611.36x = 56,413,205,508.15
  5. Step 5: Solve for x
    x = 56,413,205,508.15/303,611.36
  6. Step 6: Final answer
    x = 185,807.29

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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.