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Finding the Fourth Proportional to 443,930.36, 665,901.69 and 144,412.51

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Solution

The fourth proportional to 443,930.36, 665,901.69 and 144,412.51 is: 216,620.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,930.36 : 665,901.69 = 144,412.51 : x
  2. Step 2: Convert to fraction form
    443,930.36/665,901.69 = 144,412.51/x
  3. Step 3: Cross multiply
    443,930.36x = 665,901.69 × 144,412.51
  4. Step 4: Simplify right side
    443,930.36x = 96,164,532,801.39
  5. Step 5: Solve for x
    x = 96,164,532,801.39/443,930.36
  6. Step 6: Final answer
    x = 216,620.76

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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.