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Finding the Fourth Proportional to 318,083.12, 477,126.72 and 93,442.64

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Solution

The fourth proportional to 318,083.12, 477,126.72 and 93,442.64 is: 140,164.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,083.12 : 477,126.72 = 93,442.64 : x
  2. Step 2: Convert to fraction form
    318,083.12/477,126.72 = 93,442.64/x
  3. Step 3: Cross multiply
    318,083.12x = 477,126.72 × 93,442.64
  4. Step 4: Simplify right side
    318,083.12x = 44,583,980,331.34
  5. Step 5: Solve for x
    x = 44,583,980,331.34/318,083.12
  6. Step 6: Final answer
    x = 140,164.56

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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.