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Finding the Fourth Proportional to 576.53, 865.00 and 345.58

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Solution

The fourth proportional to 576.53, 865.00 and 345.58 is: 518.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.53 : 865.00 = 345.58 : x
  2. Step 2: Convert to fraction form
    576.53/865.00 = 345.58/x
  3. Step 3: Cross multiply
    576.53x = 865.00 × 345.58
  4. Step 4: Simplify right side
    576.53x = 298,926.91
  5. Step 5: Solve for x
    x = 298,926.91/576.53
  6. Step 6: Final answer
    x = 518.50

Related Problems

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.