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Finding the Fourth Proportional to 336,420.57, 504,728.25 and 99,768.96

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Solution

The fourth proportional to 336,420.57, 504,728.25 and 99,768.96 is: 149,682.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,420.57 : 504,728.25 = 99,768.96 : x
  2. Step 2: Convert to fraction form
    336,420.57/504,728.25 = 99,768.96/x
  3. Step 3: Cross multiply
    336,420.57x = 504,728.25 × 99,768.96
  4. Step 4: Simplify right side
    336,420.57x = 50,356,212,585.12
  5. Step 5: Solve for x
    x = 50,356,212,585.12/336,420.57
  6. Step 6: Final answer
    x = 149,682.32

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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.