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Finding the Fourth Proportional to 243,728.56, 365,457 and 75,201.04

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Solution

The fourth proportional to 243,728.56, 365,457 and 75,201.04 is: 112,759.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,728.56 : 365,457 = 75,201.04 : x
  2. Step 2: Convert to fraction form
    243,728.56/365,457 = 75,201.04/x
  3. Step 3: Cross multiply
    243,728.56x = 365,457 × 75,201.04
  4. Step 4: Simplify right side
    243,728.56x = 27,482,746,475.28
  5. Step 5: Solve for x
    x = 27,482,746,475.28/243,728.56
  6. Step 6: Final answer
    x = 112,759.65

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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.