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Finding the Fourth Proportional to 595.05, 821.06 and 346.28

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Solution

The fourth proportional to 595.05, 821.06 and 346.28 is: 477.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    595.05 : 821.06 = 346.28 : x
  2. Step 2: Convert to fraction form
    595.05/821.06 = 346.28/x
  3. Step 3: Cross multiply
    595.05x = 821.06 × 346.28
  4. Step 4: Simplify right side
    595.05x = 284,316.66
  5. Step 5: Solve for x
    x = 284,316.66/595.05
  6. Step 6: Final answer
    x = 477.80

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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.