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Finding the Fourth Proportional to 300,187.40, 450,386.58 and 187,739.96

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Solution

The fourth proportional to 300,187.40, 450,386.58 and 187,739.96 is: 281,675.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,187.40 : 450,386.58 = 187,739.96 : x
  2. Step 2: Convert to fraction form
    300,187.40/450,386.58 = 187,739.96/x
  3. Step 3: Cross multiply
    300,187.40x = 450,386.58 × 187,739.96
  4. Step 4: Simplify right side
    300,187.40x = 84,555,558,513.74
  5. Step 5: Solve for x
    x = 84,555,558,513.74/300,187.40
  6. Step 6: Final answer
    x = 281,675.91

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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.