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Finding the Fourth Proportional to 445,586.52, 668,408.94 and 130,017

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Solution

The fourth proportional to 445,586.52, 668,408.94 and 130,017 is: 195,034.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,586.52 : 668,408.94 = 130,017 : x
  2. Step 2: Convert to fraction form
    445,586.52/668,408.94 = 130,017/x
  3. Step 3: Cross multiply
    445,586.52x = 668,408.94 × 130,017
  4. Step 4: Simplify right side
    445,586.52x = 86,904,525,151.98
  5. Step 5: Solve for x
    x = 86,904,525,151.98/445,586.52
  6. Step 6: Final answer
    x = 195,034.01

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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.