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Finding the Fourth Proportional to 511.39, 705.80 and 337.09

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Solution

The fourth proportional to 511.39, 705.80 and 337.09 is: 465.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    511.39 : 705.80 = 337.09 : x
  2. Step 2: Convert to fraction form
    511.39/705.80 = 337.09/x
  3. Step 3: Cross multiply
    511.39x = 705.80 × 337.09
  4. Step 4: Simplify right side
    511.39x = 237,918.12
  5. Step 5: Solve for x
    x = 237,918.12/511.39
  6. Step 6: Final answer
    x = 465.24

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