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Finding the Fourth Proportional to 595.23, 821.16 and 418.22

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Solution

The fourth proportional to 595.23, 821.16 and 418.22 is: 576.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    595.23 : 821.16 = 418.22 : x
  2. Step 2: Convert to fraction form
    595.23/821.16 = 418.22/x
  3. Step 3: Cross multiply
    595.23x = 821.16 × 418.22
  4. Step 4: Simplify right side
    595.23x = 343,421.43
  5. Step 5: Solve for x
    x = 343,421.43/595.23
  6. Step 6: Final answer
    x = 576.96

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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.