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Finding the Fourth Proportional to 226,653.55, 312,792.50 and 131,141.79

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Solution

The fourth proportional to 226,653.55, 312,792.50 and 131,141.79 is: 180,981.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,653.55 : 312,792.50 = 131,141.79 : x
  2. Step 2: Convert to fraction form
    226,653.55/312,792.50 = 131,141.79/x
  3. Step 3: Cross multiply
    226,653.55x = 312,792.50 × 131,141.79
  4. Step 4: Simplify right side
    226,653.55x = 41,020,168,676.43
  5. Step 5: Solve for x
    x = 41,020,168,676.43/226,653.55
  6. Step 6: Final answer
    x = 180,981.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.