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Finding the Fourth Proportional to 443,907.54, 665,924.51 and 144,291.78

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Solution

The fourth proportional to 443,907.54, 665,924.51 and 144,291.78 is: 216,458.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,907.54 : 665,924.51 = 144,291.78 : x
  2. Step 2: Convert to fraction form
    443,907.54/665,924.51 = 144,291.78/x
  3. Step 3: Cross multiply
    443,907.54x = 665,924.51 × 144,291.78
  4. Step 4: Simplify right side
    443,907.54x = 96,087,432,893.53
  5. Step 5: Solve for x
    x = 96,087,432,893.53/443,907.54
  6. Step 6: Final answer
    x = 216,458.21

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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.