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Finding the Fourth Proportional to 318,526.56, 477,833.76 and 108,108

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Solution

The fourth proportional to 318,526.56, 477,833.76 and 108,108 is: 162,176.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,526.56 : 477,833.76 = 108,108 : x
  2. Step 2: Convert to fraction form
    318,526.56/477,833.76 = 108,108/x
  3. Step 3: Cross multiply
    318,526.56x = 477,833.76 × 108,108
  4. Step 4: Simplify right side
    318,526.56x = 51,657,652,126.08
  5. Step 5: Solve for x
    x = 51,657,652,126.08/318,526.56
  6. Step 6: Final answer
    x = 162,176.91

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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.