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Finding the Fourth Proportional to 436,089.20, 654,133.80 and 236,505.20

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Solution

The fourth proportional to 436,089.20, 654,133.80 and 236,505.20 is: 354,757.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,089.20 : 654,133.80 = 236,505.20 : x
  2. Step 2: Convert to fraction form
    436,089.20/654,133.80 = 236,505.20/x
  3. Step 3: Cross multiply
    436,089.20x = 654,133.80 × 236,505.20
  4. Step 4: Simplify right side
    436,089.20x = 154,706,045,195.76
  5. Step 5: Solve for x
    x = 154,706,045,195.76/436,089.20
  6. Step 6: Final answer
    x = 354,757.80

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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.