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Finding the Fourth Proportional to 401,674.50, 554,316.26 and 220,383.14

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Solution

The fourth proportional to 401,674.50, 554,316.26 and 220,383.14 is: 304,131.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,674.50 : 554,316.26 = 220,383.14 : x
  2. Step 2: Convert to fraction form
    401,674.50/554,316.26 = 220,383.14/x
  3. Step 3: Cross multiply
    401,674.50x = 554,316.26 × 220,383.14
  4. Step 4: Simplify right side
    401,674.50x = 122,161,957,931.86
  5. Step 5: Solve for x
    x = 122,161,957,931.86/401,674.50
  6. Step 6: Final answer
    x = 304,131.72

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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.