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Finding the Fourth Proportional to 290,704.99, 436,123.29 and 101,174.30

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Solution

The fourth proportional to 290,704.99, 436,123.29 and 101,174.30 is: 151,784.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,704.99 : 436,123.29 = 101,174.30 : x
  2. Step 2: Convert to fraction form
    290,704.99/436,123.29 = 101,174.30/x
  3. Step 3: Cross multiply
    290,704.99x = 436,123.29 × 101,174.30
  4. Step 4: Simplify right side
    290,704.99x = 44,124,468,579.45
  5. Step 5: Solve for x
    x = 44,124,468,579.45/290,704.99
  6. Step 6: Final answer
    x = 151,784.35

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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.