Home / 429,084.30-643,053.24-226,266.78

Finding the Fourth Proportional to 429,084.30, 643,053.24 and 226,266.78

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Solution

The fourth proportional to 429,084.30, 643,053.24 and 226,266.78 is: 339,097.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,084.30 : 643,053.24 = 226,266.78 : x
  2. Step 2: Convert to fraction form
    429,084.30/643,053.24 = 226,266.78/x
  3. Step 3: Cross multiply
    429,084.30x = 643,053.24 × 226,266.78
  4. Step 4: Simplify right side
    429,084.30x = 145,501,585,983.37
  5. Step 5: Solve for x
    x = 145,501,585,983.37/429,084.30
  6. Step 6: Final answer
    x = 339,097.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.