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Finding the Fourth Proportional to 300,189.40, 450,389.60 and 187,741.96

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Solution

The fourth proportional to 300,189.40, 450,389.60 and 187,741.96 is: 281,678.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,189.40 : 450,389.60 = 187,741.96 : x
  2. Step 2: Convert to fraction form
    300,189.40/450,389.60 = 187,741.96/x
  3. Step 3: Cross multiply
    300,189.40x = 450,389.60 × 187,741.96
  4. Step 4: Simplify right side
    300,189.40x = 84,557,026,267.62
  5. Step 5: Solve for x
    x = 84,557,026,267.62/300,189.40
  6. Step 6: Final answer
    x = 281,678.92

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1.5x scale

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.