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Finding the Fourth Proportional to 300,506.40, 451,009.89 and 158,402.70

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Solution

The fourth proportional to 300,506.40, 451,009.89 and 158,402.70 is: 237,735.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,506.40 : 451,009.89 = 158,402.70 : x
  2. Step 2: Convert to fraction form
    300,506.40/451,009.89 = 158,402.70/x
  3. Step 3: Cross multiply
    300,506.40x = 451,009.89 × 158,402.70
  4. Step 4: Simplify right side
    300,506.40x = 71,441,184,302.70
  5. Step 5: Solve for x
    x = 71,441,184,302.70/300,506.40
  6. Step 6: Final answer
    x = 237,735.98

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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.