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Finding the Fourth Proportional to 442,890.69, 611,208.51 and 249,310.88

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Solution

The fourth proportional to 442,890.69, 611,208.51 and 249,310.88 is: 344,059.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,890.69 : 611,208.51 = 249,310.88 : x
  2. Step 2: Convert to fraction form
    442,890.69/611,208.51 = 249,310.88/x
  3. Step 3: Cross multiply
    442,890.69x = 611,208.51 × 249,310.88
  4. Step 4: Simplify right side
    442,890.69x = 152,380,930,245.03
  5. Step 5: Solve for x
    x = 152,380,930,245.03/442,890.69
  6. Step 6: Final answer
    x = 344,059.91

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1.5x scale

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.