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Finding the Fourth Proportional to 458,354.67, 687,578.99 and 158,835.03

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Solution

The fourth proportional to 458,354.67, 687,578.99 and 158,835.03 is: 238,268.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,354.67 : 687,578.99 = 158,835.03 : x
  2. Step 2: Convert to fraction form
    458,354.67/687,578.99 = 158,835.03/x
  3. Step 3: Cross multiply
    458,354.67x = 687,578.99 × 158,835.03
  4. Step 4: Simplify right side
    458,354.67x = 109,211,629,504.02
  5. Step 5: Solve for x
    x = 109,211,629,504.02/458,354.67
  6. Step 6: Final answer
    x = 238,268.83

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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.