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Finding the Fourth Proportional to 243,622.23, 365,496.33 and 75,138.80

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Solution

The fourth proportional to 243,622.23, 365,496.33 and 75,138.80 is: 112,727.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,622.23 : 365,496.33 = 75,138.80 : x
  2. Step 2: Convert to fraction form
    243,622.23/365,496.33 = 75,138.80/x
  3. Step 3: Cross multiply
    243,622.23x = 365,496.33 × 75,138.80
  4. Step 4: Simplify right side
    243,622.23x = 27,462,953,813.12
  5. Step 5: Solve for x
    x = 27,462,953,813.12/243,622.23
  6. Step 6: Final answer
    x = 112,727.62

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1.5x scale

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.