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Finding the Fourth Proportional to 300,840.08, 451,109.86 and 98,409.76

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Solution

The fourth proportional to 300,840.08, 451,109.86 and 98,409.76 is: 147,565.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,840.08 : 451,109.86 = 98,409.76 : x
  2. Step 2: Convert to fraction form
    300,840.08/451,109.86 = 98,409.76/x
  3. Step 3: Cross multiply
    300,840.08x = 451,109.86 × 98,409.76
  4. Step 4: Simplify right side
    300,840.08x = 44,393,613,056.23
  5. Step 5: Solve for x
    x = 44,393,613,056.23/300,840.08
  6. Step 6: Final answer
    x = 147,565.49

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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.