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Finding the Fourth Proportional to 401,504.79, 554,092.12 and 220,224.36

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Solution

The fourth proportional to 401,504.79, 554,092.12 and 220,224.36 is: 303,918.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,504.79 : 554,092.12 = 220,224.36 : x
  2. Step 2: Convert to fraction form
    401,504.79/554,092.12 = 220,224.36/x
  3. Step 3: Cross multiply
    401,504.79x = 554,092.12 × 220,224.36
  4. Step 4: Simplify right side
    401,504.79x = 122,024,582,508.04
  5. Step 5: Solve for x
    x = 122,024,582,508.04/401,504.79
  6. Step 6: Final answer
    x = 303,918.12

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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.