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Finding the Fourth Proportional to 573.63, 791.63 and 340.75

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Solution

The fourth proportional to 573.63, 791.63 and 340.75 is: 470.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    573.63 : 791.63 = 340.75 : x
  2. Step 2: Convert to fraction form
    573.63/791.63 = 340.75/x
  3. Step 3: Cross multiply
    573.63x = 791.63 × 340.75
  4. Step 4: Simplify right side
    573.63x = 269,747.92
  5. Step 5: Solve for x
    x = 269,747.92/573.63
  6. Step 6: Final answer
    x = 470.25

Related Problems

Find fourth proportional to 286.82, 395.82 and 170.38
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.