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Finding the Fourth Proportional to 420,080.46, 630,120.84 and 104,537.37

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Solution

The fourth proportional to 420,080.46, 630,120.84 and 104,537.37 is: 156,806.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,080.46 : 630,120.84 = 104,537.37 : x
  2. Step 2: Convert to fraction form
    420,080.46/630,120.84 = 104,537.37/x
  3. Step 3: Cross multiply
    420,080.46x = 630,120.84 × 104,537.37
  4. Step 4: Simplify right side
    420,080.46x = 65,871,175,395.79
  5. Step 5: Solve for x
    x = 65,871,175,395.79/420,080.46
  6. Step 6: Final answer
    x = 156,806.09

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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.