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Finding the Fourth Proportional to 243,333.70, 365,000.55 and 91,559.32

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Solution

The fourth proportional to 243,333.70, 365,000.55 and 91,559.32 is: 137,338.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,333.70 : 365,000.55 = 91,559.32 : x
  2. Step 2: Convert to fraction form
    243,333.70/365,000.55 = 91,559.32/x
  3. Step 3: Cross multiply
    243,333.70x = 365,000.55 × 91,559.32
  4. Step 4: Simplify right side
    243,333.70x = 33,419,201,416.80
  5. Step 5: Solve for x
    x = 33,419,201,416.80/243,333.70
  6. Step 6: Final answer
    x = 137,338.98

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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.