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Finding the Fourth Proportional to 520,199.92, 780,299.87 and 146,222.92

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Solution

The fourth proportional to 520,199.92, 780,299.87 and 146,222.92 is: 219,334.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,199.92 : 780,299.87 = 146,222.92 : x
  2. Step 2: Convert to fraction form
    520,199.92/780,299.87 = 146,222.92/x
  3. Step 3: Cross multiply
    520,199.92x = 780,299.87 × 146,222.92
  4. Step 4: Simplify right side
    520,199.92x = 114,097,722,785.16
  5. Step 5: Solve for x
    x = 114,097,722,785.16/520,199.92
  6. Step 6: Final answer
    x = 219,334.37

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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.