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Finding the Fourth Proportional to 569.76, 786.15 and 336.75

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Solution

The fourth proportional to 569.76, 786.15 and 336.75 is: 464.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    569.76 : 786.15 = 336.75 : x
  2. Step 2: Convert to fraction form
    569.76/786.15 = 336.75/x
  3. Step 3: Cross multiply
    569.76x = 786.15 × 336.75
  4. Step 4: Simplify right side
    569.76x = 264,736.01
  5. Step 5: Solve for x
    x = 264,736.01/569.76
  6. Step 6: Final answer
    x = 464.64

Related Problems

Find fourth proportional to 284.88, 393.08 and 168.38
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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.