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Finding the Fourth Proportional to 400,063.08, 552,087.02 and 218,775.16

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Solution

The fourth proportional to 400,063.08, 552,087.02 and 218,775.16 is: 301,909.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,063.08 : 552,087.02 = 218,775.16 : x
  2. Step 2: Convert to fraction form
    400,063.08/552,087.02 = 218,775.16/x
  3. Step 3: Cross multiply
    400,063.08x = 552,087.02 × 218,775.16
  4. Step 4: Simplify right side
    400,063.08x = 120,782,926,134.42
  5. Step 5: Solve for x
    x = 120,782,926,134.42/400,063.08
  6. Step 6: Final answer
    x = 301,909.70

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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.