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Finding the Fourth Proportional to 405,446.48, 559,499.64 and 224,146.88

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Solution

The fourth proportional to 405,446.48, 559,499.64 and 224,146.88 is: 309,313.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,446.48 : 559,499.64 = 224,146.88 : x
  2. Step 2: Convert to fraction form
    405,446.48/559,499.64 = 224,146.88/x
  3. Step 3: Cross multiply
    405,446.48x = 559,499.64 × 224,146.88
  4. Step 4: Simplify right side
    405,446.48x = 125,410,098,667.12
  5. Step 5: Solve for x
    x = 125,410,098,667.12/405,446.48
  6. Step 6: Final answer
    x = 309,313.57

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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.