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Finding the Fourth Proportional to 573.15, 858.33 and 435.09

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Solution

The fourth proportional to 573.15, 858.33 and 435.09 is: 651.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    573.15 : 858.33 = 435.09 : x
  2. Step 2: Convert to fraction form
    573.15/858.33 = 435.09/x
  3. Step 3: Cross multiply
    573.15x = 858.33 × 435.09
  4. Step 4: Simplify right side
    573.15x = 373,450.80
  5. Step 5: Solve for x
    x = 373,450.80/573.15
  6. Step 6: Final answer
    x = 651.58

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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.