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Finding the Fourth Proportional to 300,739.86, 451,210.49 and 98,345.29

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Solution

The fourth proportional to 300,739.86, 451,210.49 and 98,345.29 is: 147,550.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,739.86 : 451,210.49 = 98,345.29 : x
  2. Step 2: Convert to fraction form
    300,739.86/451,210.49 = 98,345.29/x
  3. Step 3: Cross multiply
    300,739.86x = 451,210.49 × 98,345.29
  4. Step 4: Simplify right side
    300,739.86x = 44,374,426,490.09
  5. Step 5: Solve for x
    x = 44,374,426,490.09/300,739.86
  6. Step 6: Final answer
    x = 147,550.87

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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.