Home / 429,244.68-643,964.22-229,459.80

Finding the Fourth Proportional to 429,244.68, 643,964.22 and 229,459.80

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Solution

The fourth proportional to 429,244.68, 643,964.22 and 229,459.80 is: 344,241.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,244.68 : 643,964.22 = 229,459.80 : x
  2. Step 2: Convert to fraction form
    429,244.68/643,964.22 = 229,459.80/x
  3. Step 3: Cross multiply
    429,244.68x = 643,964.22 × 229,459.80
  4. Step 4: Simplify right side
    429,244.68x = 147,763,901,128.36
  5. Step 5: Solve for x
    x = 147,763,901,128.36/429,244.68
  6. Step 6: Final answer
    x = 344,241.66

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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.