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Finding the Fourth Proportional to 573.90, 859.91 and 357.03

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Solution

The fourth proportional to 573.90, 859.91 and 357.03 is: 534.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    573.90 : 859.91 = 357.03 : x
  2. Step 2: Convert to fraction form
    573.90/859.91 = 357.03/x
  3. Step 3: Cross multiply
    573.90x = 859.91 × 357.03
  4. Step 4: Simplify right side
    573.90x = 307,011.88
  5. Step 5: Solve for x
    x = 307,011.88/573.90
  6. Step 6: Final answer
    x = 534.96

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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.