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Finding the Fourth Proportional to 595.01, 821.48 and 385.49

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Solution

The fourth proportional to 595.01, 821.48 and 385.49 is: 532.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    595.01 : 821.48 = 385.49 : x
  2. Step 2: Convert to fraction form
    595.01/821.48 = 385.49/x
  3. Step 3: Cross multiply
    595.01x = 821.48 × 385.49
  4. Step 4: Simplify right side
    595.01x = 316,672.45
  5. Step 5: Solve for x
    x = 316,672.45/595.01
  6. Step 6: Final answer
    x = 532.21

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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.