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Finding the Fourth Proportional to 303,157.05, 418,386.30 and 226,543.11

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Solution

The fourth proportional to 303,157.05, 418,386.30 and 226,543.11 is: 312,651.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,157.05 : 418,386.30 = 226,543.11 : x
  2. Step 2: Convert to fraction form
    303,157.05/418,386.30 = 226,543.11/x
  3. Step 3: Cross multiply
    303,157.05x = 418,386.30 × 226,543.11
  4. Step 4: Simplify right side
    303,157.05x = 94,782,533,583.39
  5. Step 5: Solve for x
    x = 94,782,533,583.39/303,157.05
  6. Step 6: Final answer
    x = 312,651.59

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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.