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Finding the Fourth Proportional to 445,369.76, 668,044.94 and 108,412.20

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Solution

The fourth proportional to 445,369.76, 668,044.94 and 108,412.20 is: 162,615.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,369.76 : 668,044.94 = 108,412.20 : x
  2. Step 2: Convert to fraction form
    445,369.76/668,044.94 = 108,412.20/x
  3. Step 3: Cross multiply
    445,369.76x = 668,044.94 × 108,412.20
  4. Step 4: Simplify right side
    445,369.76x = 72,424,221,644.27
  5. Step 5: Solve for x
    x = 72,424,221,644.27/445,369.76
  6. Step 6: Final answer
    x = 162,615.94

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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.