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Finding the Fourth Proportional to 572,475.75, 859,107.30 and 198,498.75

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Solution

The fourth proportional to 572,475.75, 859,107.30 and 198,498.75 is: 297,884.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,475.75 : 859,107.30 = 198,498.75 : x
  2. Step 2: Convert to fraction form
    572,475.75/859,107.30 = 198,498.75/x
  3. Step 3: Cross multiply
    572,475.75x = 859,107.30 × 198,498.75
  4. Step 4: Simplify right side
    572,475.75x = 170,531,725,165.88
  5. Step 5: Solve for x
    x = 170,531,725,165.88/572,475.75
  6. Step 6: Final answer
    x = 297,884.63

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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.