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Finding the Fourth Proportional to 606.31, 836.75 and 344.32

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Solution

The fourth proportional to 606.31, 836.75 and 344.32 is: 475.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.31 : 836.75 = 344.32 : x
  2. Step 2: Convert to fraction form
    606.31/836.75 = 344.32/x
  3. Step 3: Cross multiply
    606.31x = 836.75 × 344.32
  4. Step 4: Simplify right side
    606.31x = 288,108.53
  5. Step 5: Solve for x
    x = 288,108.53/606.31
  6. Step 6: Final answer
    x = 475.19

Related Problems

Find fourth proportional to 303.15, 418.38 and 172.16
Half scale
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Double scale
Find fourth proportional to 607.31, 838.13 and 345.32
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.