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Finding the Fourth Proportional to 347,559.78, 521,330.55 and 110,916.90

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Solution

The fourth proportional to 347,559.78, 521,330.55 and 110,916.90 is: 166,372.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,559.78 : 521,330.55 = 110,916.90 : x
  2. Step 2: Convert to fraction form
    347,559.78/521,330.55 = 110,916.90/x
  3. Step 3: Cross multiply
    347,559.78x = 521,330.55 × 110,916.90
  4. Step 4: Simplify right side
    347,559.78x = 57,824,368,481.30
  5. Step 5: Solve for x
    x = 57,824,368,481.30/347,559.78
  6. Step 6: Final answer
    x = 166,372.44

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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.