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Finding the Fourth Proportional to 318,476.44, 477,637.70 and 93,775.72

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Solution

The fourth proportional to 318,476.44, 477,637.70 and 93,775.72 is: 140,640.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,476.44 : 477,637.70 = 93,775.72 : x
  2. Step 2: Convert to fraction form
    318,476.44/477,637.70 = 93,775.72/x
  3. Step 3: Cross multiply
    318,476.44x = 477,637.70 × 93,775.72
  4. Step 4: Simplify right side
    318,476.44x = 44,790,819,216.64
  5. Step 5: Solve for x
    x = 44,790,819,216.64/318,476.44
  6. Step 6: Final answer
    x = 140,640.92

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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.