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Finding the Fourth Proportional to 595.42, 821.69 and 346.75

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Solution

The fourth proportional to 595.42, 821.69 and 346.75 is: 478.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    595.42 : 821.69 = 346.75 : x
  2. Step 2: Convert to fraction form
    595.42/821.69 = 346.75/x
  3. Step 3: Cross multiply
    595.42x = 821.69 × 346.75
  4. Step 4: Simplify right side
    595.42x = 284,921.01
  5. Step 5: Solve for x
    x = 284,921.01/595.42
  6. Step 6: Final answer
    x = 478.52

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

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.