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Finding the Fourth Proportional to 252,528.66, 378,844.83 and 75,019.86

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Solution

The fourth proportional to 252,528.66, 378,844.83 and 75,019.86 is: 112,545.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,528.66 : 378,844.83 = 75,019.86 : x
  2. Step 2: Convert to fraction form
    252,528.66/378,844.83 = 75,019.86/x
  3. Step 3: Cross multiply
    252,528.66x = 378,844.83 × 75,019.86
  4. Step 4: Simplify right side
    252,528.66x = 28,420,886,108.32
  5. Step 5: Solve for x
    x = 28,420,886,108.32/252,528.66
  6. Step 6: Final answer
    x = 112,545.19

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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.