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Finding the Fourth Proportional to 405,247.00, 559,242.60 and 221,489.27

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Solution

The fourth proportional to 405,247.00, 559,242.60 and 221,489.27 is: 305,656.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,247.00 : 559,242.60 = 221,489.27 : x
  2. Step 2: Convert to fraction form
    405,247.00/559,242.60 = 221,489.27/x
  3. Step 3: Cross multiply
    405,247.00x = 559,242.60 × 221,489.27
  4. Step 4: Simplify right side
    405,247.00x = 123,866,233,697.26
  5. Step 5: Solve for x
    x = 123,866,233,697.26/405,247.00
  6. Step 6: Final answer
    x = 305,656.14

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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.