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Finding the Fourth Proportional to 318,162.52, 477,142.35 and 104,890.68

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Solution

The fourth proportional to 318,162.52, 477,142.35 and 104,890.68 is: 157,302.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,162.52 : 477,142.35 = 104,890.68 : x
  2. Step 2: Convert to fraction form
    318,162.52/477,142.35 = 104,890.68/x
  3. Step 3: Cross multiply
    318,162.52x = 477,142.35 × 104,890.68
  4. Step 4: Simplify right side
    318,162.52x = 50,047,785,548.30
  5. Step 5: Solve for x
    x = 50,047,785,548.30/318,162.52
  6. Step 6: Final answer
    x = 157,302.58

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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.