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Finding the Fourth Proportional to 405,504.18, 559,571.72 and 224,201.88

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Solution

The fourth proportional to 405,504.18, 559,571.72 and 224,201.88 is: 309,385.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,504.18 : 559,571.72 = 224,201.88 : x
  2. Step 2: Convert to fraction form
    405,504.18/559,571.72 = 224,201.88/x
  3. Step 3: Cross multiply
    405,504.18x = 559,571.72 × 224,201.88
  4. Step 4: Simplify right side
    405,504.18x = 125,457,031,618.83
  5. Step 5: Solve for x
    x = 125,457,031,618.83/405,504.18
  6. Step 6: Final answer
    x = 309,385.30

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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.